Do you like to get down on the floor to play with your children? These wooden unit blocks are the perfect set to watch your children's creativity flourish. Kindergarten size blocks have enough mass and size to make great buildings and roads, yet are still "kid sized".170 pieces, 21 shapes. Guidecraft smooth unit blocks are made to resist dents and dings. You'll notice the finely sanded and rounded to eliminate any sharp edges, and are splinter-free to protect tender young hands. These wooden unit blocks are guaranteed for life. Material: Hardwood.