My son picked this out at the store and was so excited but it doesn't stick to the tile in our bathroom wall so make sure suction cups stick to yours first

This was a good toy for having science in the bath, observing the flow or ball route. Its a little to complicated for a toddler and we had issues with suction cups. Really hard to release them when needed to adjust path, but they also just fall off on their own after a while. The wheel suction cup ended up ripped because with the design of the wheel I couldn't release it at the edges with my fingers and tried to use a butter knife to get it free.