The puzzle contains large and flexible parts and pieces the allow you builders to create designs of varying sizes and difficulty, each piece is a bright color to make every creation stand out . Contribute to the developments of children's key abilities , such as fine motor skills , hand-eye coordination and agility . - educational toys: babies can improve their fine motor skills and hand-eye coordination ability by twisting, squeezing and assembling different parts of the toy. - sensory enhancement: stacking toys engage babies' attention and encourage them to assemble a complete animal shape. The combination of toys in different colors is designed to stimulate their thinking and exercise babies' perception ability, and promote their brain development. - puzzle stacking toys: challenge children to build anything they can imagine and enhance their imagination and creativity. Our stacking puzzles will also accompany your child's growth. From simple designs for toddlers to advanced designs suitable for older children. - child safe material: this toy is made of high quality abs material, which is safe and has no irritating smell. It is harmless to babies and easy to play.