What are the exact dimensions of the 20ml and the 30ml vial: diameter and height?

I do no know, I purchased the 10ml vials. It says 50 x 22 mm on the box.

Does the rubber seal on the inside of the vial have a small gap in the rubber to allow all of the med to be drawn up, or is it continuous on inside?

I've never seen what you mention. The rubber is a one piece seal with no holes. When you insert a syringe into it, it makes a hole, however, it seals up (this is the self healing feature they're talking about). So you tear the plastic cap off permanently, which exposes the rubber seal. It seals up so tight, that the contents can not escape even when upside down.

For the seller: What is meant by "self-healing"? I've never seen that before, aren't all multi-dose vials just made from identical butyl rubber?

Yeah it’s just like every other vial. Normal rubber tops

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Sold byAmazon ThailandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧴 Elevate your lab game with sterile precision and seamless reliability!

FLIP OFF ALUMINUM CAPS - Easy-to-remove, tamper-evident aluminum-plastic covers for secure and hygienic access.
PRECISION 5 ML GLASS VIALS - Crystal-clear, single-dose vials designed for exact measurements and professional use.
REUSABLE LEAK PROOF DESIGN - Engineered for durability and repeated use without compromising sterility or safety.
SELF HEALING INJECTION PORTS - Official PTFE-coated ports that maintain vial integrity after multiple punctures—leak-proof and reliable.
STERILE STEAM STERILIZED PACKAGING - Individually sealed with germicidal indicator bags ensuring 121°C sterilization for absolute safety.

Ks-Tek Sterile Empty Vials are premium 5ml glass containers featuring steam sterilization at 121°C, self-healing PTFE injection ports, and tamper-evident flip-off aluminum caps. Individually packaged with germicidal indicators, these leak-proof vials ensure maximum sterility and durability, perfect for professional and clinical environments.

Specifications

ASIN	B091M4SHD1
Additional Features	Leak Proof
Bottle Type	Glass Vials
Brand Name	Ks-Tek
Capacity	5 Milliliters
Color	clear
Customer Reviews	4.5 4.5 out of 5 stars (396)
Item Weight	0.12 Kilograms
Manufacturer	Ks-Tek
Material Type	Aluminum
Number of Items	10
Product Care Instructions	Please handle with care
Recommended Uses For Product	School
Reusability	Reusable
Shape	Cylindrical
UPC	761412515376
Unit Count	10.0 Count

Reviews

E**O

Gostei muito do produto, maravilhoso

22.03.2026

H**L

Amazing little kit! Great quality and the stickers are a great added bonus that others don’t supply!

5.03.2026

H**R

Alles bestens funktioniert ohne Probleme. Alles steril verpackt.

3.12.2025

M**E

Fast delivery Great product Only disadvantage lid does not fit back on otherwise perfect

23.06.2024

B**D

great vials, packed and sealed in a sterile environment which is great! I only graded it at a 4/5 since it required some effort to just get the silicone stopper out of the empty vial without needing to snap/damage the metal band. This is purely cosmetic and isn't that big of a deal for personal use, but for commercial use I suggest maybe adding some sort of little plastic tool to open the vial (keeping the metal band and purple seal intact).

23.10.2025

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