The set comes with 12 stair shape elements, and kids can use them to build a roofline or a stair shape and let the ball roll down the stairs. It combines well with other wooden building sets like rainbows, peg dolls, bridges, semicircles, and large stepped pyramids.

Material: basswood with non-toxic water-based stains

Dimensions: 3.9 x 1.6 x 1.6 inches