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

Ks Tek Sterile Empty Vials With Self Healing Injection Port

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

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1188631₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.

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Description

🧴 Elevate your lab game with sterile precision and smart design!

PRECISION IN EVERY DROP - 5ml glass vial capacity designed for accurate dosing and reliable lab results.
SECURE CONVENIENT ACCESS - Flip-off aluminum cap offers tamper-evident protection with easy vial access.
INNOVATIVE SELF HEALING PORT - PTFE-coated injection port reseals after each use, maintaining vial integrity.
PACKAGED FOR PROFESSIONAL USE - Individually wrapped in sterilization indicator bags for guaranteed sterility on demand.
STERILE CONFIDENCE EVERY TIME - Individually steam-sterilized vials ensure contamination-free sample storage.

Ks-Tek Sterile Empty Vials are 5ml glass containers individually steam sterilized at 121°C for 20 minutes, featuring a self-healing PTFE-coated injection port and flip-off aluminum caps. Packaged sterile with indicator bags, these single-use vials are ideal for professional laboratory and scientific sample storage, ensuring contamination-free handling and secure access.

Specifications

ASIN	B091M4SHD1
Additional Features	Leak Proof
Best Sellers Rank	#382,215 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #10,363 in Jars & Containers
Bottle Type	Glass Bottle
Brand	Ks-Tek
Brand Name	Ks-Tek
Capacity	5 Milliliters
Colour	Purple
Country of Publication	USA
Customer Reviews	4.5 out of 5 stars 1,561 Reviews
Item Weight	0.12 Kilograms
Manufacturer	Ks-Tek
Manufacturer Part Number	KSUS-SEV-M
Material	aluminum
Material Type	aluminum
Model Number	KSUS-SEV-M
Number of Items	10
Product Care Instructions	Handle with Care
Recommended Uses For Product	School
Reusability	Single-Use
Shape	Cylindrical
Special Feature	Leak Proof
UPC	761412515376
Unit Count	10.0 Count

Reviews

B**O

Excellent quality

26.07.2026

C**A

Viel esterilizado

Recebi conforme anúncio , nada a reclamar

20.02.2026

B**R

Schnelle Lieferung

Artikel wie beschrieben

16.06.2026

E**O

excelente

Gostei muito do produto, maravilhoso

22.03.2026

S**4

Recommended.

I have been using them for TRT for many months now, with no problems at all. Recommended.

29.04.2026

K**.

Great Product

Great Vials very well packed. so much cheaper then buying singles.

17.03.2026

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

2 months ago

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1188631₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Anita G.

Good experience, but the tracking updates could be better.