This puzzle features 4 basic geometric shapes that help your child develop his or her fine motors skills, pincer grasp, visual discrimination, coordination, problem-solving, and concentration. Children can practice their shape sorting, matching skills, and problem-solving skills. They will develop early geometry and math skills with these self-correcting, hands-on, natural wood puzzles. Our puzzle is crafted of eco-friendly, durable hardwood, and coated with a child-safe clear coat for a smooth, beautiful, lasting finish. These Shape Puzzles are made from natural, sustainably-sourced wood. All materials are lab tested ensuring100% non-toxic safety. Pieces are appropriately sized for babies and toddlers to eliminate choking hazards.