Ks-Tek Sterile Empty Vials with Self Healing Injection Port,with Flip Off Aluminum Cap,Sterile Package (10ml,10)

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

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

Would have been better if lids weren't on

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

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).

Just what I needed and arrived quickly

Gostei muito do produto, maravilhoso

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

Alles bestens funktioniert ohne Probleme. Alles steril verpackt.

The KS-Tek 10 mL individually wrapped sterile vials meet professional lab handling standards with excellent consistency and build quality. Each vial arrives individually sealed, maintaining sterility integrity and minimizing contamination risk during storage and staging. The borosilicate glass construction is uniform in wall thickness, free from visual defects, and demonstrates solid structural durability under standard laboratory handling conditions. The butyl rubber stoppers are well-centered and properly seated, providing reliable reseal performance after multiple needle punctures without excessive coring or fragmentation. Crimp seals are evenly applied with consistent compression, ensuring secure closure and pressure stability. Volume calibration appears accurate and repeatable across units, and the interior surface is clean with no visible particulate or residue. All units inspected were free of cracks, chips, or sealing irregularities. For laboratory, research, or controlled compounding applications requiring sterile 10 mL containment, these vials provide dependable quality control and professional-grade reliability.

Perfect for what I need. Quality is great. Seal is good. Definitely better than other ones I bought where the vacuum doesn't exist and the seal doesn't actually heal properly. Would buy again. Just wish it were cheaper and came with a case to hold vials.