Advantage 3: 1. Large handle movement grip. 2 feels smooth no burrs do not hurt your hands. 3. Advanced technology thermal transfer colorful. Exercise thinking: divergent thinking enlightenment cognition overall and partial guiding infants to inspire thinking. Manufacturered by GAO SHOP. Parent-child interaction: Toys are a bridge between you and your child and are fun. Parent-child interaction: Infants over six months are primarily exposed to gripping ability and exercise the baby's hand to move to meet their curiosity. Jigsaw Toys: A large children's puzzle game that helps with sensory training gripping exercises hand brain coordination and color recognition.