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• PTB240 are soft, rubbery, interlocking bristles that stick together at any angle makes it easier to build.
• PTB240 provides a good way to develop children's creativity at a young age. Your children can acquire strong sense of color, geometrical shapes, & architectural design.
• PTB240 bristle shape block set has a different brightly colored piece which provides kid's endless building possibilities.
• PTB240 bristle shape block set can build different objects such as a car, a house, a robot.