Circuits of funThis STEM circuit learning set will give your young one hours of fun and valuable learning. It features three different blocks that can be interchanged with three different action tops. This set will not only teach your child about shapes and colors, but buttons, sounds, and lights too. The blocks include one that safely spins, another that lights up, and another that whistles and whirs, while the top sections include three different switches, one to push, one to slide, and one to flip! Directions for adults are included. Requires 6 AA batteries, sold separately. For ages 18 months and up.