---
product_id: 537420647
title: "Spill-Proof Silicone Accessory Set for Stanley Cups - Includes Straw Covers, Round and Square Leak Stoppers - Anti-Dust Tumbler Accessories"
brand: "ajedrmy"
price: "¥1416"
currency: JPY
in_stock: true
reviews_count: 13
category: "Ajedrmy"
url: https://www.desertcart.jp/products/537420647-spill-proof-silicone-accessory-set-for-stanley-cups-includes-straw
store_origin: JP
region: Japan
---

# 100% leak-proof seal Food-grade silicone safe Easy snap-on installation Spill-Proof Silicone Accessory Set for Stanley Cups - Includes Straw Covers, Round and Square Leak Stoppers - Anti-Dust Tumbler Accessories

**Brand:** ajedrmy
**Price:** ¥1416
**Availability:** ✅ In Stock

## Summary

> 🚫💦 Keep spills out and style in—your Stanley’s new best friend!

## Quick Answers

- **What is this?** Spill-Proof Silicone Accessory Set for Stanley Cups - Includes Straw Covers, Round and Square Leak Stoppers - Anti-Dust Tumbler Accessories by ajedrmy
- **How much does it cost?** ¥1416 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/537420647-spill-proof-silicone-accessory-set-for-stanley-cups-includes-straw)

## Best For

- ajedrmy enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Safe:** Crafted from BPA-free, food-grade silicone that’s dishwasher safe and built to last through every adventure.
- • **Effortless Setup:** Snug, secure fit with a simple twist—no tools, no hassle, just instant spill-proof peace of mind.
- • **Complete Accessory Kit:** Includes 2 straw covers, 2 round and 2 square leak stoppers—everything you need to customize your tumbler’s protection.
- • **Spill-Proof Confidence:** Lock in every drop with a leak-proof design that keeps your Stanley cup dry and your day mess-free.
- • **Tailored for Stanley 2.0:** Specifically engineered for Stanley 30oz & 40oz H2.0 cups—perfect fit, zero compromises.

## Overview

The Spill-Proof Silicone Accessory Set by Ajedrmy is a premium, reusable kit designed exclusively for Stanley 2.0 30oz and 40oz tumblers. Featuring a leak-proof design with 2 straw covers and 4 leak stoppers (round and square), it ensures zero spills and dust protection. Made from durable, BPA-free food-grade silicone, it’s dishwasher safe and easy to install, making it the ultimate upgrade for professionals who demand both function and sleek convenience on the go.

## Description

Buy Spill-Proof Silicone Accessory Set for Stanley Cups - Includes Straw Covers, Round and Square Leak Stoppers - Anti-Dust Tumbler Accessories: Sports Water Bottle Accessories - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: No water spilling out with these intact! - These are perfect and they work. They work a little too good and I can't grab them out with my small fingers. I make my boyfriend take them out before washing. But this thing is seriously waterproof. If you drop it in the car and it rolls on the ground, it ain't spilling! Carrying way too much and your drink is tilted to the side? It ain't spilling! Only minor nuisance is when you're washing the little pieces and you might not find where you put them to dry. For the longest time I could not figure out where that big circle piece goes but it goes in the middle on the bottom of the lid.
Review: Would buy again!! - I use this everyday!! Love the fit on my straw. When I have the whole set on it seals the cup well!! Some of my Stanley’s are weird and don’t let me drink with the inside seal so I don’t always use it(I think it’s because they might be off brand) I love the design and I’ve been using this kit for a while now and it’s still so good!! I thought I lost a piece in the dishwasher and I would’ve totally bought again if I couldn’t find it!

## Features

- Leak-proof Design- Say goodbye to water leakage from your stanley, this is a leak proof stopper specially designed for your stanley tumbler, prevents spillage or tipping of liquids, make you no longer trouble with leaking water.
- Includ Component - These spill proof accessories including 2 straw cover sets, 2 round Leak stoppers and 2 square spill stoppers.
- Easy to Install - Our stanley cup stopper is very easy to install. ust put it on top of your tumbler lid and gently rotate the straw to slowly insert. It will fit snugly and securely
- Food Grade Silicone - Made of food grade silicone, dust and leak proof, durable reusable, dishwasher safe.eusable, dishwasher safe.
- Only Used Stanley 2.0 - Our Spill Proof Stopper Silicone Set accessories are only available for stanley cup H2.0 40oz ＆ 30oz.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C61MKX5J |
| Age Range (Description) | Adult |
| Best Sellers Rank | #6,110 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #134 in Water Bottle Accessories |
| Brand | Ajedrmy |
| Color | Clear |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,558) |
| Date First Available | May 23, 2023 |
| Included Components | Lid, Straw |
| Item Weight | 0.317 ounces |
| Item model number | Spill Proof Stopper02 |
| Manufacturer | Ajedrmy |
| Material Feature | Insulated |
| Material Type Free | BPA Free |
| Number of Items | 1 |
| Package Dimensions | 4.53 x 3.15 x 0.83 inches |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Recommended Uses For Product | Home |
| Reusability | Reusable |
| Shape | Round |
| Size | 2 Ounces |
| Special Feature | Reusable |
| Style | Modern |
| Unit Count | 6.0 Count |

## Product Details

- **Brand:** Ajedrmy
- **Capacity:** 2 Fluid Ounces
- **Color:** Clear
- **Material:** Silicone
- **Special Feature:** Reusable

## Images

![Spill-Proof Silicone Accessory Set for Stanley Cups - Includes Straw Covers, Round and Square Leak Stoppers - Anti-Dust Tumbler Accessories - Image 1](https://m.media-amazon.com/images/I/61dFlqrHxPL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ No water spilling out with these intact!
*by S***E on October 29, 2025*

These are perfect and they work. They work a little too good and I can't grab them out with my small fingers. I make my boyfriend take them out before washing. But this thing is seriously waterproof. If you drop it in the car and it rolls on the ground, it ain't spilling! Carrying way too much and your drink is tilted to the side? It ain't spilling! Only minor nuisance is when you're washing the little pieces and you might not find where you put them to dry. For the longest time I could not figure out where that big circle piece goes but it goes in the middle on the bottom of the lid.

### ⭐⭐⭐⭐⭐ Would buy again!!
*by K***Y on November 24, 2025*

I use this everyday!! Love the fit on my straw. When I have the whole set on it seals the cup well!! Some of my Stanley’s are weird and don’t let me drink with the inside seal so I don’t always use it(I think it’s because they might be off brand) I love the design and I’ve been using this kit for a while now and it’s still so good!! I thought I lost a piece in the dishwasher and I would’ve totally bought again if I couldn’t find it!

### ⭐⭐⭐⭐⭐ Works great!
*by A***A on December 20, 2025*

Works really well, kept my cup from leaking.

## Frequently Bought Together

- Spill-Proof Silicone Accessory Set for Stanley Cups - Includes Straw Covers, Round and Square Leak Stoppers - Anti-Dust Tumbler Accessories
- Replacement Straw Compatible with Stanley 40 oz 30 oz Cup Tumbler, 6 Pack Reusable Straw with Cleaning Brush, Plastic, Clear

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**Shop now:** [https://www.desertcart.jp/products/537420647-spill-proof-silicone-accessory-set-for-stanley-cups-includes-straw](https://www.desertcart.jp/products/537420647-spill-proof-silicone-accessory-set-for-stanley-cups-includes-straw)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*