Jartastix® Silicone Replacement Caps | 48mm Diameter Bottle Lids That Fit Perfectly Stanpac & Libbey Milk Glass Bottles | Reusable, Long-Lasting and Easy to Clean Bottle Caps (Green, 2 Pack)

These are made of silicone rubber. They fit the bottles perfectly and tight. They are very easy to pop on and pop off the bottles. Easy to clean. I have shaken the bottles, hard. Turned the bottles upside down and shaken them. No liqued has spilled and the lids stayed put. I will be purchasing a few more in the near future.

Fit the bottle perfect. I can’t believe I waited to long to get them.

These caps fit my half gallon milk bottles perfectly. Their design fits snug but easy to fasten and remove. The silicone makes it durable and I could see these lasting a long time.

I had a couple of glass, half-gallon milk bottles that I re-use for juice and iced tea, and the original plastic caps were beginning to crack. I was happy to find these replacement caps, made of heavy-duty (but stretchy) silicone, easy to put on, and they stay on great. I think they will last as long as my bottles -- or possibly longer!

They fit very snug. I have to turn them inside out and fold over the bottle top. That works great.Good quality.

Love these lids. Non-leaking, yet easy off and on. Pretty matte color.I purchased to replace old lids of milk bottle style glass jugs. Very happy!Highly recommend.

These work well on a half gallon glass milk bottle pliable tops

They ended up being too large for my milk bottles