Children make tons of sensory discoveries as they explore this adorable hardwood puzzle! The hedgehog’s “quills” feature embedded textures and visual elements—from smooth and bumpy to mirrored and tinted. Kids simply choose a “quill”…explore it with their hands and eyes…then match it to its corresponding color on the puzzle board! Durable board includes 9 easy-to-grab pieces; board measures 12 1/2" in length.