XccMe Wijn Tumbler vervangende deksels 4 stuks, morsbestendig spatbestendige siliconen schuifhoezen, strovriendelijk, BPA-vrij (12 oz 4PACK)

What I learned with mine when I first got them is that to fit them in the mug make sure they are in their open position otherwise they fit snug and don't properly seal and could become damaged. Once they are inserted in the open position they will close easily.

Fits perfectly

Very snug fit for Costco s'well tumblers, over time they fit better, but for the first while just don't press them all the way down until then. You may need to put one hot water and seal the lid to help remove them if they're stuck.My biggest concern is that you can't remove the mouthpiece slider without without breaking it. Liquids get trapped under it. 5 stars otherwise.

It's clean and seals the glass very well. No complaint.

I have ordered these lids twice. The first time 3 of the 4 lids had the spout cover part fall off.I am now a month into my second set of lids and 3 out of 4 lids have already fallen apart-again.I don’t put them in the dishwasher and I haven’t dropped them. Wouldn’t recommend at all