The Battat Bristle Blocks 112-Piece Basic Building Set is ideal for building hand-eye coordination and stimulating young, curious minds. Bristle blocks feature soft, interlocking bristles that stick together at any angle for frustration-free building. This basic building set includes 112 pieces in assorted sizes and vibrant colors for hours of imaginative play. Eight (8) functional wheels add motion to objects, providing additional options to young builders. The blocks in this set are compatible with Battat Spinaroo and Stackadoo bristle block sets. Recommended for ages 2 years and up. From the Manufacturer Bristle blocks have soft, interlocking bristles that stick together at any angle for frustration-free building. The 112 Piece Bristle Blocks are perfect to stimulate young minds. Features 8 wheels and lots of fun shapes. Ideal for toddlers.