Bristle Blocks® are fun and easy to join, and children can use their imagination to create their own designs or reproduce one of our suggested setups. Bristle Blocksfeature soft, interlocking bristles that stick together at any angle for frustration-free building. The building sets include pieces in assorted sizes and vibrant colors for hours of imaginative play. Every Battat® toy has an educational value, whether it is didactic or nurturing, or collecting and creating worlds for children playing with them.Bristle Blocks' bright colors and fun shapes stimulate young minds and build motor skills.The different sizes and special pieces will stimulate creativity. A great long-lasting toy with an infinite amount of possibilities.