Re Play Replacement Valve for Sippy Cups, Pack of 6 - One Piece, Easy to Clean Valve Made from Food Grade Silicone

Best Sippys I've found. Available replacement stoppers are a huge plus. A little pricey, but worth it. No leaks, no drips, just the right size.

Leak proof. Fits well. Same durability as original. Easy to clean with bottle brush. Works well for my kid.

Great for sippy cups, easy to use. Great size and fit,with leaks proof quality. Clear color.

I got these to work with the replay sippy cup bottles. They are the perfect replacement and cost efficient for how many you get. We always ended up loosing one or two valves somehow so this pack is perfect and allows us to make sure we always have spares. They work just like the original ones that come with the comes. If you tighten the cap as it should be, there is no leaking whatsoever.

So far these are the best leak proof, long lasting sippy cups that I have found. Easy to clean. We have lost several of these plastic pieces, so I love that I am able to purchase additional.