sourcing map Silicone O-Ring, 31mm OD, 25mm ID, 3mm Width, VMQ Seal Rings Gasket, White, Pack of 10

Very cheap and fit well to an off the shelf water bottle. Expected to have to replace the bottle but the seal although slightly different in form worked perfectly, no leaks at all.

Works as should. Good cheap replacement. Didn’t need 10 though so a bit of a waste of material. Couldn’t buy any less.

I needed replacement silicone rings for a couple of water bottles, these are even better than the original ones that came with the water bottles in functionality and quality.

I don't do many review because I usually cant be bothered but I had to do this one as like many people I have a few flasks that have started to leak due to the O-ring splitting or falling out/not fitting properly after use. Instead of chucking out my flask I decided to give this a go and am very glad I did, not only does it fit perfectly but I have plenty spare for other flasks in the house.Well worth the buy.

Bought to replace the seal on my vacuum flask works perfectly

Arrived as specified. I was looking for a replacement seal for my daughters systema water bottle and these seem to fit the bill. I have a generic water bottle and they fit my perfectly. Now I read what others had said some good comments about the seals saying that they worked and other slayting them. My daughter and I take fizzy water in our water bottles now because plain water seems dull compared, and the only reason why I needed a replacement seal, the lid exploded off when my daughter opened her bottle and unexpectedly unawares of the gas built up from the water the lid shot off with a loud bang and seal was nowhere to be found. I replaced the lid with the new seal, it fits perfect but still wants to explode so now she holds the lid down firmly when unscrewing the lid. So you see they work, no leaks and as you get 10 so we've nothing to lose. Great replacement. Thank yo

Unable to review as these had to be replaced by a more suitable product.

Would buy again if required.