Bests & Worsts Reviews from Amazon

We’ve used the child size funtainers for 2 years with zero issues. These funtainers are the WORST product I’ve ever purchased. The plastic ring valve will not stay in place. So the bottle leaks on my Kindergartener daily. I fix the valve and it comes out within a day. I’m putting it in correctly too! We’ve tried 4 cups - they all have this issue. Save yourself the frustration and buy something else.