Description: 1. The Pieces of these sticks are easily snap together and are designed to withstand rough play. Smooth edges can protect the toddlers and easy for them to grasp it. 2. These functions will be able to fully attract the attention of the baby, enhance the strength of hand and wrist activities, and promote the development of hand muscles and stimulate the babys visual, auditory development. Content: 1 Set of Plastic Building Blocks Kit with the Plastic Base Square Hollow.