The GraviTrax Junior Hammer is an exciting, hands-on expansion element designed to bring dynamic speed to your child's marble run creations. Specially engineered for young builders aged three to seven, this mechanical action tile uses a clever swinging hammer mechanism to capture a rolling marble and strike it forward with a sudden burst of momentum. This kinetic boost allows the large, child-safe plastic marbles to conquer longer tracks and roll further than before, teaching valuable real-world lessons about cause-and-effect relationships and basic physics. Crafted from an eco-friendly wood bioplastic blend that feels great in small hands, this durable component integrates seamlessly with any GraviTrax Junior Starter Set to keep the structural storytelling going. It offers a wonderful, electronic-free way for preschoolers to experiment with gravity, learn through open-ended play, and experience the thrill of building their very first marble racing worlds. *for a complete play experience, Gravitrax Junior Elements are to be used with Gravitrax Junior Starter Sets, not as stand-alone items. Ages: 3-7
