Features • PTB151-TRUCK are soft, rubbery, interlocking bristles that stick together at any angle makes it easier to build. • PTB151-TRUCK provides a good way to develop children's creativity at a young age. Your children can acquire a strong sense of color, geometrical shapes, & architectural design. • PTB151-TRUCK bristle shape block set has different brightly colored pieces which provide kid's endless building possibilities. • PTB151-TRUCK bristle shape block set can build different objects such as a car, a house, a robot. The most amazing thing is that kids can build a completed farm. • PTB151-TRUCK bristle shape block set includes different figures like pig, cow, donkey, and sheep.