13mm Vial Rubber Stoppers-Two Legs(100 Count) Self Healing Injection Ports Solid Seal, for Glass Vial and Liquid Culture Jars, Can Be Sterilized by Steam and Repeated Used (13mm-2 Legs)

Works perfectly

These are game changers for liquid cultures for mushroom cultivation. Super cheap for how easy they make sterile spore and LC transfers.

was very happy with the quality of the product

It works well

Ok stuff. I'm tripping..

Works like a charm. Thank you.

100% success with zero contaminates. No problems being pressure cooked at 15psi for 90 minutes. The ports can be used multiple times, but they're so cheap I use new ones each time. 100 for $10 is an excellent buy.

15/32 bit running drill in reverse for a clean puncture. Run reverse from topside. It will be a friction hole. Light cleanup on backside but stopper will seal perfect. Love the fit and seal

they work

The 15 mm SHIPs fit nice and snug in a 1/4in hole, at least for standard metal canning lids. You will have to pinch and pull them through from the other side, but that's a good thing.Going by the dimensions, I first tried a 9/32 hole, but that was a bit too loose. Use a sharp bit with a sacrificial block of wood under your metal lids to prevent a lot of burs, and hand-twist a large bit on the backside to clear those up - not that that side being sharp matters too much, but it could damage your SHIPs over time.I haven't used them fully yet but just going by initial impressions I'd say these are well worth the money and effort.

Arrived on time, lid dinted but produce in good shape

Looks, feels, and functions according to plan.

Works as described.