Tanks

The cap is made of hard plastic and not ceramic and rubber like im used to. Unsure how long they'll last.

These tops fit perfectly on my bottles. The plugs and washers are plastic, not porcelain and rubber, but they do the trick.

I ordered these so I'd have extras on hand if I need them, but so far they haven't fit any of my bottles because the wires are too long for them to close properly.

Rec'd my bottle tops today and am very pleased with them. I just feel better having an extra bag of these around when the time comes to replace a top when I'm bottling my water kefir and kombucha. These work great and are a high quality product. Highly recommend!