This set includes 100 wooden tiles, 100 tacks, 1 mini hammer, 1 corkboard and instructions. Arrange the shapes on the board, tack them in place and tap them down. When it's time for a new picture, gently lift the shapes until the release from the board. This open-ended activity develops reasoning, imagination and fine motor skills as children tap new designs. With 100 wooden tiles and 4 colors, children can create limitless patterns, images and scenes. The tacks feature large tops, which make it easy for children to tap them down. The shapes feature smooth wood, and the lightweight hammer prevents accidental pinching or smashing. The large corkboard provides extra space to create. Size of small circle: 0.6" dia. Size of large trapezoid: 2.1"L x 1.4"W. Size of corkboard: 11.75"L x 8.25"W. For ages 4+.