The Battat 50-Piece Bristle Block Bucket 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 50 pieces in assorted sizes and vibrant colors for hours of imaginative play. The bristle blocks come in a sturdy plastic bucket for easy storage when not in use. The blocks in this set are compatible with Battat Spinaroo and Stackadoo bristle block sets. Recommended for ages 2 years and up.