---
product_id: 521435646
title: "Sippy Cup Conversion Kit for Philips Avent Natural Baby Bottle, Food Grade Spill-Proof Spout, Weighted Straw, Bottle Handle, Cleaning Brush, BPA-Free Transition Trainer Set, 6M+, 2-Pack"
brand: "chubbiee"
price: "¥4608"
currency: JPY
in_stock: true
reviews_count: 8
category: "Chubbiee"
url: https://www.desertcart.jp/products/521435646-sippy-cup-conversion-kit-for-philips-avent-natural-baby-bottle
store_origin: JP
region: Japan
---

# 360° weighted straw for all-angle drinking Instant bottle-to-cup conversion Leak-proof, gum-friendly silicone spout Sippy Cup Conversion Kit for Philips Avent Natural Baby Bottle, Food Grade Spill-Proof Spout, Weighted Straw, Bottle Handle, Cleaning Brush, BPA-Free Transition Trainer Set, 6M+, 2-Pack

**Brand:** chubbiee
**Price:** ¥4608
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Toddler Feeding: From Bottle to Sippy in a Snap!

## Quick Answers

- **What is this?** Sippy Cup Conversion Kit for Philips Avent Natural Baby Bottle, Food Grade Spill-Proof Spout, Weighted Straw, Bottle Handle, Cleaning Brush, BPA-Free Transition Trainer Set, 6M+, 2-Pack by chubbiee
- **How much does it cost?** ¥4608 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/521435646-sippy-cup-conversion-kit-for-philips-avent-natural-baby-bottle)

## Best For

- chubbiee enthusiasts

## Why This Product

- Trusted chubbiee brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Mess-Free, Gentle Flow:** Soft silicone spout releases liquid only when sucked, protecting gums and preventing spills.
- • **Seamless Bottle Upgrade:** Transform your Philips Avent bottles into toddler sippy cups in seconds—no extra bottles needed.
- • **360° Gravity-Activated Straw:** Innovative weighted straw ensures smooth sipping from any angle, perfect for on-the-go toddlers.
- • **Ergonomic Handles for Tiny Hands:** Non-slip grips promote self-feeding independence and fine motor skill development.
- • **Complete Double Set with Easy Cleaning:** Includes 2 spouts, straws, handles, and brushes—all BPA-free and dishwasher safe for busy parents.

## Overview

The Sippy Cup Conversion Kit effortlessly transforms Philips Avent Natural baby bottles into spill-proof, toddler-friendly sippy cups. Featuring a 360° weighted straw for smooth drinking at any angle, a soft silicone spout gentle on gums, and ergonomic handles to encourage self-feeding, this BPA-free, dishwasher-safe double pack is the ultimate transition trainer for active babies and busy parents alike.

## Description

Product description Compatible Sippy Cup Conversion Kit for Philips Avent Natural Baby Bottle Welcome to Chubbiee Baby! We're thrilled to introduce our Sippy Cup Conversion Kit for Philips Avent Natural Baby Bottle. This innovative kit includes everything you need to convert your baby's favorite bottle into a versatile sippy cup, making the transition from bottle to cup easy and stress-free. The kit includes 2 soft, food-grade silicone sippy spout nipples 2 weighted straw attachments 2 cleaning brushes for the straw 2 bottle handles for added convenience 2 handy cases for storage Encourage self-feeding and independence with our bottle handles and drink at any angle with our weighted straw attachment. Plus, the kit is easy to maintain with our included cleaning brush. Your Benefits Premium Conversion Kit Includes two silicone sippy spout nipples, two weighted straw attachments, two bottle handles, and two straw cleaning brushes. One Size Fits All Fits any size of Philips Avent Natural Baby PP Bottles and Glass Bottles. Ensuring Your Baby's Safety Made from food-grade silicone, free from BPA, phthalates, and lead. Variable flow and cross-cut options to suit your baby's needs. Leak-proof Drinking Soft spout design ensures a comfortable transition for your baby. Leak-proof and gentle-on-the-gums design for comfortable and confident drinking. Will this kit fit the Philips Avent Anti-colic or Classic bottles? No, it does NOT. This conversion kit is exclusively designed for Philips Avent Natural bottles (the ones with the wide neck and curvy shape). It is compatible with both Plastic and Glass Natural bottles (4oz, 9oz, and 11oz). Will this kit fit the Philips Avent Anti-colic or Classic bottles? No, it does NOT. This conversion kit is exclusively designed for Philips Avent Natural bottles (the ones with the wide neck and curvy shape). It is compatible with both Plastic and Glass Natural bottles (4oz, 9oz, and 11oz). Can my baby drink from the bottle while lying down or reclining? Yes, but lying completely flat is not recommended. The weighted straw works at any angle, including reclining. However, to prevent choking and ear infections, pediatricians advise keeping your baby’s head slightly elevated while drinking. Can my baby drink from the bottle while lying down or reclining? Yes, but lying completely flat is not recommended. The weighted straw works at any angle, including reclining. However, to prevent choking and ear infections, pediatricians advise keeping your baby’s head slightly elevated while drinking. Does the nipple leak if the cup is turned upside down or shaken? It is spill-proof. Our silicone spout nipple is designed with a variable flow valve that only releases liquid when your baby sucks on it. If held upside down or dropped, it won't create a mess. Please make sure all parts are assembled tightly. Does the nipple leak if the cup is turned upside down or shaken? It is spill-proof. Our silicone spout nipple is designed with a variable flow valve that only releases liquid when your baby sucks on it. If held upside down or dropped, it won't create a mess. Please make sure all parts are assembled tightly. How do I clean the straw? Is it hard to get the milk residue out? Cleaning is very easy. We recommend disassembling the parts and using the brush to clean inside the straw with cleaning brush after every use. All parts (nipples, straws, handles) are also top-rack dishwasher safe and sterilizer safe. How do I clean the straw? Is it hard to get the milk residue out? Cleaning is very easy. We recommend disassembling the parts and using the brush to clean inside the straw with cleaning brush after every use. All parts (nipples, straws, handles) are also top-rack dishwasher safe and sterilizer safe. I have the Avent Glass Natural bottles. Are the handles and screw rings heavy enough to hold the glass bottle securely? Yes! These handles are sturdy and ergonomically designed to fit Philips Avent Natural Glass Bottles perfectly. They provide a non-slip grip that makes it much easier for your little one to hold the heavier glass bottles independently. I have the Avent Glass Natural bottles. Are the handles and screw rings heavy enough to hold the glass bottle securely? Yes! These handles are sturdy and ergonomically designed to fit Philips Avent Natural Glass Bottles perfectly. They provide a non-slip grip that makes it much easier for your little one to hold the heavier glass bottles independently. Holding and Feeding - A Big Step for Baby Sippy Cup Conversion Kit Natural bottle handles Anti-colic bottle handles

Review: Great product - Works very well with Phillips bottles! My baby used it on the first try and I get to reuse bottles instead of buying sippy cups! I need more!
Review: Tomar leche es más fácil - Estoy encantada con estos chupones les viene a las mamilas de Philips Avent, definitivamente los volvería a comprar, recomendados

## Features

- INSTANTLY TURN BOTTLES INTO SIPPY CUPS – This comprehensive conversion kit is perfectly compatible with Philips Avent Natural baby bottles (plastic & glass, all sizes). Transform your existing bottles into a toddler trainer cup in seconds. (Note: Bottles are NOT included).
- 360° DRINKING WITH WEIGHTED STRAW – Designed for active babies. The innovative gravity ball straw moves with the liquid, allowing your little one to drink smoothly at any angle—sitting, reclining, or lying down. Perfect for transitioning from nipple to straw while preventing air intake.
- LEAK-PROOF & GUMS-FRIENDLY SPOUT – Our soft silicone sippy spout nipples feature a variable flow design that only releases liquid when the baby sucks, preventing messy spills. The ultra-soft texture is gentle on sensitive gums during teething periods, making the switch from breastfeeding or bottle-feeding easier.
- ERGONOMIC HANDLES FOR INDEPENDENCE – Promote self-feeding skills specifically designed for little hands. The non-slip, easy-grip handles help baby hold the bottle firmly, building confidence and motor skills. The set is easy to assemble and disassemble for thorough cleaning (2 cleaning brushes included).
- ULTIMATE VALUE PACK & BABY SAFE – You get a complete double set: 2x Spout Nipples, 2x Weighted Straw Kits, 2x Handles, and 2x Straw Brushes. Made of 100% Food-Grade Silicone and PP. BPA-Free, Phthalate-Free, and Lead-Free. Dishwasher safe and sterilizer safe.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BN17R92C |
| Age Range Description | Baby |
| Best Sellers Rank | #23,798 in Baby ( See Top 100 in Baby ) #529 in Toddler Cups |
| Bottle Nipple Type | Vented |
| Bottle Type | Vented Bottle |
| Brand | CHUBBIEE |
| Capacity | 8 ounces |
| Color | Wihte |
| Customer Reviews | 4.4 out of 5 stars 260 Reviews |
| Dish Washer Safe | Yes |
| Is the item microwaveable? | Yes |
| Item Weight | 0.15 Pounds |
| Liquid Flow Speed | Variable Flow |
| Manufacturer | CHUBBIEE |
| Material Type Free | BPA Free, Lead Free, Phthalates Free |
| Number of Items | 2 |
| Unit Count | 2.0 Count |

## Product Details

- **Bottle Nipple Type:** Vented
- **Brand:** CHUBBIEE
- **Color:** Wihte
- **Item Weight:** 0.15 Pounds
- **Material Type Free:** BPA Free, Lead Free, Phthalates Free

## Images

![Sippy Cup Conversion Kit for Philips Avent Natural Baby Bottle, Food Grade Spill-Proof Spout, Weighted Straw, Bottle Handle, Cleaning Brush, BPA-Free Transition Trainer Set, 6M+, 2-Pack - Image 1](https://m.media-amazon.com/images/I/712s3OHvqpL.jpg)

## Questions & Answers

**Q: Will this kit fit the Philips Avent Anti-colic or Classic bottles?**
A: No, it does NOT. This conversion kit is exclusively designed for Philips Avent Natural bottles (the ones with the wide neck and curvy shape). It is compatible with both Plastic and Glass Natural bottles (4oz, 9oz, and 11oz).

**Q: Can my baby drink from the bottle while lying down or reclining?**
A: Yes, but lying completely flat is not recommended. The weighted straw works at any angle, including reclining. However, to prevent choking and ear infections, pediatricians advise keeping your baby’s head slightly elevated while drinking.

**Q: Does the nipple leak if the cup is turned upside down or shaken?**
A: It is spill-proof. Our silicone spout nipple is designed with a variable flow valve that only releases liquid when your baby sucks on it. If held upside down or dropped, it won't create a mess. Please make sure all parts are assembled tightly.

**Q: How do I clean the straw? Is it hard to get the milk residue out?**
A: Cleaning is very easy. We recommend disassembling the parts and using the brush to clean inside the straw with cleaning brush after every use. All parts (nipples, straws, handles) are also top-rack dishwasher safe and sterilizer safe.

**Q: I have the Avent Glass Natural bottles. Are the handles and screw rings heavy enough to hold the glass bottle securely?**
A: Yes! These handles are sturdy and ergonomically designed to fit Philips Avent Natural Glass Bottles perfectly. They provide a non-slip grip that makes it much easier for your little one to hold the heavier glass bottles independently.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by A***L on May 21, 2026*

Works very well with Phillips bottles! My baby used it on the first try and I get to reuse bottles instead of buying sippy cups! I need more!

### ⭐⭐⭐⭐⭐ Tomar leche es más fácil
*by A***R on May 30, 2026*

Estoy encantada con estos chupones les viene a las mamilas de Philips Avent, definitivamente los volvería a comprar, recomendados

### ⭐⭐⭐⭐ Good
*by H***H on February 16, 2025*

Great for transitioning from bottles, but the straw part comes loose after several months. I guess they're supposed to be a temporary thing

## Frequently Bought Together

- Sippy Cup Conversion Kit for Philips Avent Natural Baby Bottle, Transition Kit with Silicone Sippy Spout Nipple, Weighted Straw, Bottle Handle, Cleaning Brush, Spill-Proof, BPA-Free, Pack of 2
- Philips Avent Natural Response Nipples, Extra Fast Flow (Flow 5), 4-Pack, SCY965/04
- Philips Avent Natural Baby Bottles with Natural Response Nipples (Medium Flow, Flow 3), 9oz, 4-Pack, SCY903/04

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-06-14*