The First Shapes Jumbo Knob Puzzle is a large knobbed wood puzzle designed for use by children with fine motor, grasping, neurological, or upper extremity disabilities. This five-piece puzzle teaches basic shapes (triangle, square, circle, oval, and rectangle)and the name of the shape is printed on each piece. The shapes fit into an image of a house. Each piece of this extra-thick wooden puzzle has a jumbo wooden knob. Full-color, matching pictures appear underneath each piece. This puzzle encourages eye-hand, fine motor, and visual perception skills. DIMENSIONS (LxWxH): 12.2 x 12 x 1.5 inches. WEIGHT: 1.4 pounds. COLOR: The house is blue.