---
product_id: 744198366
title: "20mm Flip Off Caps Burr-Free Flip Top Caps Aluminum-Plastic Caps Single Tone Flip Top Seals for Glass Vial 100 Pcs by ZHANXUBIO (20mm, White)"
brand: "zhanxubio"
price: "¥10750"
currency: JPY
in_stock: true
reviews_count: 5
category: "Zhanxubio"
url: https://www.desertcart.jp/products/744198366-20mm-flip-off-caps-burr-free-flip-top-caps-aluminum
store_origin: JP
region: Japan
---

# Bulk pack of 100 caps Secure 20mm vial fit Burr-free smooth edges 20mm Flip Off Caps Burr-Free Flip Top Caps Aluminum-Plastic Caps Single Tone Flip Top Seals for Glass Vial 100 Pcs by ZHANXUBIO (20mm, White)

**Brand:** zhanxubio
**Price:** ¥10750
**Availability:** ✅ In Stock

## Summary

> 🔐 Seal your vials with confidence — no burrs, no fuss, just flawless flips!

## Quick Answers

- **What is this?** 20mm Flip Off Caps Burr-Free Flip Top Caps Aluminum-Plastic Caps Single Tone Flip Top Seals for Glass Vial 100 Pcs by ZHANXUBIO (20mm, White) by zhanxubio
- **How much does it cost?** ¥10750 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/744198366-20mm-flip-off-caps-burr-free-flip-top-caps-aluminum)

## Best For

- zhanxubio enthusiasts

## Why This Product

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

## Key Features

- • **Bulk 100-Pack Convenience:** Stock up and stay prepared with a generous quantity designed for professional lab or clinical use.
- • **Burr-Free Flip Top Design:** Smooth, sharp-edge-free lids prevent contamination and protect your sterile solutions with ease.
- • **Compact & Professional Style:** Sleek white single-tone caps that blend seamlessly into any sterile environment or workspace.
- • **Precision 20mm Compatibility:** Engineered to flawlessly seal all 20mm OD serum vials, ensuring a perfect fit every time.
- • **Durable Aluminum-Plastic Build:** Robust hybrid material guarantees reliable sealing without ripping or cracking under pressure.

## Overview

ZHANXUBIO’s 20mm Flip Off Caps offer a premium aluminum-plastic construction designed for secure, burr-free sealing of 20mm serum vials. Sold in a convenient 100-piece pack, these compact white flip-top caps ensure sterile preparation with smooth edges that prevent contamination and enhance safety in professional lab and clinical settings.

## Description

13/20mm Flip Off Caps Burr-Free Flip Top Caps Aluminum-Plastic Caps Single Tone Flip Top Seals for Glass Vial 100 Pcs by ZHANXUBIO

Review: Great for sterile preparation. - These are perfect, but I wish they weren't necessary. If you have vials to seal, these are better than the ones that rip on their own. As the picture shows, the aluminum does not rip at all, leading to no sharp edges. If you are preparing sterile solutions, these are a must-have over the ones that rip themselves off. Note, however, that they are only the caps. No butyl stopper nor vial. You must get those separately.
Review: Slightly short 'skirt' and hard to flip off. - These sort of items are notorious for not begin precise to either photos or per any sort of specification. 1) the photo shows a 4-tab 'melted plastic fit top' for lack of a better way to describe. They have a 6 tab top which, if they were 'easy' to flip like commercial vials, I would not complain but they are *hard* to flip off leading to perhaps accidental removal of the entire lid. 2) The 'skirt' is the metal aluminum ring on the top. And they are short according to specs (and other tops on desertcart) by about 10 mils. Why the fuss? If you don't do a perfect job of stopper compression and crimping this yields a weak seal which will avulse when popping the hard-to-remove-top (see #1) . These items appear overly critical perhaps but what preventable failure rate do you want on your vials. Failure of this sort should be zero. I had one failure of cracked glass because of need for excessive compressive force to make up for the short cap skirt. Caused grief and loss of almost a day's time plus the embarrassment and stress to speedily get a new vial to a client. The red ones seemed to have this short skirt problem but that is just my experience.

## Features

- Quantity: 100
- Material: Aluminum-plastic
- Size: 20mm. Used for 20mm vial and 20mm vial crimper
- Vial Compatible: All serum vials with 20mm OD neck sizes
- Burr-free: The lid is smooth and burr-free after opening,so the cotton swab will not hook when disinfected

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CH3TBDJY |
| Brand | ZHANXUBIO |
| Brand Name | ZHANXUBIO |
| Closure Type | Flip Top |
| Colour | White |
| Customer Reviews | 3.7 out of 5 stars 19 Reviews |
| Is the item dishwasher safe? | No |
| Is the item microwaveable? | No |
| Item Weight | 0.1 Kilograms |
| Manufacturer | ZHANXUBIO |
| Manufacturer Part Number | ZX-F-CAP |
| Material | Plastic Aluminum |
| Material Type | Plastic Aluminum |
| Model Number | ZX-F-CAP |
| Number of Pieces | 100 |
| Product Style | Compact |
| Shape | Round |
| Style | Compact |
| UPC | 768447784418 |
| Unit Count | 100 Count |

## Product Details

- **Brand:** ZHANXUBIO
- **Colour:** White
- **Item Weight:** 0.1 Kilograms
- **Material:** Plastic Aluminum
- **Style:** Compact

## Images

![20mm Flip Off Caps Burr-Free Flip Top Caps Aluminum-Plastic Caps Single Tone Flip Top Seals for Glass Vial 100 Pcs by ZHANXUBIO (20mm, White) - Image 1](https://m.media-amazon.com/images/I/61VPSu9kWiL.jpg)
![20mm Flip Off Caps Burr-Free Flip Top Caps Aluminum-Plastic Caps Single Tone Flip Top Seals for Glass Vial 100 Pcs by ZHANXUBIO (20mm, White) - Image 2](https://m.media-amazon.com/images/I/61RiBAkHxNL.jpg)
![20mm Flip Off Caps Burr-Free Flip Top Caps Aluminum-Plastic Caps Single Tone Flip Top Seals for Glass Vial 100 Pcs by ZHANXUBIO (20mm, White) - Image 3](https://m.media-amazon.com/images/I/71doiwqfLjL.jpg)
![20mm Flip Off Caps Burr-Free Flip Top Caps Aluminum-Plastic Caps Single Tone Flip Top Seals for Glass Vial 100 Pcs by ZHANXUBIO (20mm, White) - Image 4](https://m.media-amazon.com/images/I/713zTH0XSgL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for sterile preparation.
*by A***A on 28 February 2026*

These are perfect, but I wish they weren't necessary. If you have vials to seal, these are better than the ones that rip on their own. As the picture shows, the aluminum does not rip at all, leading to no sharp edges. If you are preparing sterile solutions, these are a must-have over the ones that rip themselves off. Note, however, that they are only the caps. No butyl stopper nor vial. You must get those separately.

### ⭐⭐⭐⭐ Slightly short 'skirt' and hard to flip off.
*by D***J on 13 September 2025*

These sort of items are notorious for not begin precise to either photos or per any sort of specification. 1) the photo shows a 4-tab 'melted plastic fit top' for lack of a better way to describe. They have a 6 tab top which, if they were 'easy' to flip like commercial vials, I would not complain but they are *hard* to flip off leading to perhaps accidental removal of the entire lid. 2) The 'skirt' is the metal aluminum ring on the top. And they are short according to specs (and other tops on Amazon) by about 10 mils. Why the fuss? If you don't do a perfect job of stopper compression and crimping this yields a weak seal which will avulse when popping the hard-to-remove-top (see #1) . These items appear overly critical perhaps but what preventable failure rate do you want on your vials. Failure of this sort should be zero. I had one failure of cracked glass because of need for excessive compressive force to make up for the short cap skirt. Caused grief and loss of almost a day's time plus the embarrassment and stress to speedily get a new vial to a client. The red ones seemed to have this short skirt problem but that is just my experience.

### ⭐ avoid these. poor fit
*by C***N on 3 August 2026*

these can only barely crimp over the lip of a 10 or 30ml vial, must apply too much force. was snapping tops off vials trying for a good bite. avoid this brand

## Frequently Bought Together

- ZHANXUBIO 20mm Vials Caps Burr-Free Aluminum-Plastic Caps for Glass Vial, 100 Pcs (20mm, White)
- LabZhang 100pcs 10ml Vials-Glass Clear Bottom Headspace Vial with Plastic-Aluminum Flip Off Caps and Rubber Stoppers,Transparent Glass Headspace Vials,10ml Capacity（Transparent）

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-22*