1、The boots are made of soft, breathable and durable material. 2、With “PUSH” button,you can adjust easily via pressing the button for comfortable wearing. 3、The sturdy aluminium brackets are reinforced and thickened to reduce the center of gravity and provide safe foot support. 4、Triple conservation system, including fastener tapes,durable laces and adjustable safety buckles to protect your kids\u0027 feet. 5、8 illuminating wheels are made of wear-resistant PU rubber,automatically emits colored light during operation. 6、With single brake,kids can stop the brakes at any time,which provides safety guarantees. Skating is a healthy and energetic sport,and children can enjoy a pleasant leisure time in skating. Features: The boots are made of soft, breathable and durable material. With“PUSH”button,you can adjust easily via pressing the button for comfortable wearing. The sturdy aluminium brackets are reinforced and thickened to reduce the center of gravity and provide safe foot support. Triple conservation system, including fastener tapes,durable laces and adjustable safety buckles to protect your kids' feet. 8 illuminating wheels are made of wear-resistant PU rubber,automatically emits colored light during operation. With single brake,kids can stop the brakes at any time,which provides safety guarantees. Specification: Color: Blue/Pink (optional) Size: S(31-34) / M(35-38) / L(39-42) (optional) S(EU31-34) Inner Length: 19-22cm M(EU35-38)Inner Length: 22.5-24cm L(EU39-42)Inner Length: 24.5-26cm ​Weight Capacity: 75 kg/165 lbs Material: aluminium，PP/PE Package size:41*11*34cm/16.1*4.3*13.4in Package weight:2-2.4kg/70.5-84.7oz Package List: 1* Pair of Inline Skates 1* Pair of Inline Skates