Features: 2 in 1 designs: It can transform a childrens balance bike into a balance skateboard, or can be used as a sled ski Board in combination with a baby stroller to meet the needs of different scenarios. Made of durable PP+metal material, it has good wear resistance and impact resistance, ensuring safety and reliability. The designs is stable, equipped with a sturdy sliding base and snowboard with strong grip, ensuring stability and safety during the sliding process. Adopting a detachable designs, it is easily to carry and store, adapting to the needs of different outdoor scene. Suitable for wheels with a diameter of 15-25cm/5.90-9.84inch and a thickness of 6cm/2.36inch or less. Easy installation. Specifications: Material: PP+metal Size: As shown in the picture Package Includes: 1pair Wheelblades Sled Skiing Board note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.