THE BEST TODDLER CUP I HAVE YET TO PURCHASE!!! I love these cups, they hold up to impact, they DO NOT LEAK, they are spill proof, the retainer is replaceable for cheap; after they have been used over, and over, and over, you will finally need to buy them. These cups are very easy to clean and you can even get the tiny bottle brush through the tip. They don't harbor the rancid fruit or MILK smell.. I had one in the back of the fridge for what had to be over a month; a little soaking and bleach spray, no issues. I thought about just throwing the cup away, but it was so cute! I found a translucent pink one :) BEST CUP YOU CAN BUY, I PROMISE!!!