Features Versatile & Flexible Modular Assembly: Allows for endless track configurations and creative building. Gravity-Defying Anti-Gravity Feature: Enables thrilling uphill climbs and loops that challenge-gravity. Soft Track Material: Provides flexibility, safety, and longevity for the track. Promotes DIY Track Building & Creativity: Encourages hands-on construction and imaginative design. Enhanced Play Durability & Stability: The soft yet sturdy tracks are built to last and maintain connections. Engaging & Interactive Play Experience: Keeps children (and adults) entertained with dynamic building and racing Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Battery: 3 AAA batteries(not include) Material: Plastic Specifications: 184pcs/138pcs/92pcs/46pcs Package List: 1x Kids Race Track Set