Bristle Blocks are perfect for building toddlers' hand-eye coordination and stimulating young, curious minds. They are crafted with a unique interlocking design comprised of soft, rubbery 'bristles', allowing children to easily connect pieces together in practically any way. This brightly colored 56-piece set provides endless building possibilities to fuel children's imaginations and creative juices. It also includes four rolling wheels that add motion to objects--build a car, a tank, or even a rolling castle! For ages 2 and up.