It is ideal for encouraging early preschool learning skills such as identification and sorting of shape and color, number counting, eye and hand coordination, and imaginative play, while at the same time bringing fun as wooden puzzle toys. Different shapes fit to different columns; only the right match can be set into the stack high. This helps the child learn self-correction What's in the box 1 x Totland 1 x Unlock Four Sets Wooden Blocks 1 x Column Set 4 x Multi-colour round blocks 4 x Multi-colour triangular blocks 4 x Multi-colour rectangular blocks 4 x Multi-colour cross-shaped blocks