This 142-piece ball slide building block set comes in a color box and is designed for children aged 3 to 6 years. Made of plastic, the set includes a variety of blocks and tracks that can be assembled to create a working ball slide, encouraging creativity and fine motor skills through hands-on play. The pieces are sized for small hands and can be rearranged into different configurations for repeated fun. This product is sold wholesale by the box, with eight sets per carton.