7pc Rainbow Stacker stimulates child's imagination and creativity. Rainbow stacker is best for your kids to develop ideas about shape, size, weight, texture, distance and density. It promotes hand-eye coordination, develop problem-solving skills and improve matching skills. It promotes hand-eye coordination, develop problem-solving skills and improve matching skills. This heirloom quality toy provides endless opportunities for open-ended play throughout childhood. It can also be used as tunnels, bridges and fences in the Road Track Set. This Colourful stacking toy attracts kids attention and kids love to play with it. It is made from natural hard wood.