These sipper cups are great for kids just getting used to the idea of a sippy cup, and without the tiresome act of holding up arms to drink, and tip the cup into their mouth. This enables them to sip, and suck the liquid.
I do not have children, but I babysit my neighbors regularly, and this is a cup that they particularly find easy to use, and I find easy to fill with liquid. Screw on the top, and you are set to go.
The colors and bright and fun - and they like getting drinks from this cup. It hasn't spilled yet, I haven't seen it create a mess - this is amazing, because it is literally thrown all over the place. No liquid has yet to leak out of the straw.
It's an innovative cup with great ideas, and the straw is able to be covered. I like this feature. Especially if you are going to store it in the fridge. One of their favorites, and one of mine - a true crowd pleaser!