BoonBoon Snug Silicone Sippy Cup Lids - Convert Kids Cups or Toddler Cups into Sippy Cups - Toddler Feeding Supplies - 3 Count - MultiColour

These are a little bit difficult to pull over some cupps, but the work great and my babies are very happy with them!

This product doesn't leak unless your kids is like mine an sticks his finger in the air hole 😳 and mine has a small tear so it will leak if it's full an he turns it up. The size is okay he does drink alot and I do have to keep refilling but it's so easy I don't mind! Quality is fantastic only Recommendation would be stronger air hole/silicone?My 18month old is using it perfectly it's so easy-to-use! Great value since they hold up so well 👏 & the interchangeable lid is great! Only thing I would want is a bulk pack 4 cups 4 lids! & maybe a bigger option for cup size!

They are great but would like something that fits other containers.

Three weeks and no issue with them, I'm cleaning them by hand not in the washing machine thou. They fit almost anything and baby liked them.

These are great, I just keep one in the nappy bag if we are out and about and attach them to a glass. Saves so much room and so far have fitted every cup/glass iv used them with and no spills

These caps are flexible enough to fit over most cups. My 5 month old great-grand can use it. He does not make a mess when using it. It is so much easier to slip one in a plastic zipper bag than to haul around a whole sippy cup that may leak.