Discover the ultimate versatility and fun with these 2-in-1 Adjustable Four-Wheel Skates, designed to switch effortlessly between single and double rows to accommodate both beginners and more advanced skaters. Featuring self-generating in-wheel colored LED lights, these skates shine brightly in the dark without the need for batteries, enhancing visibility and excitement during every ride. Key Features: · 2-in-1 Convertible Design: Easily switch between inline and quad skate configurations to suit different skill levels and preferences, providing better balance for beginners and more agility for experienced skaters. · Size Adjustable for Growing Feet: Equipped with a simple push-button mechanism, each skate offers four size adjustment ranges, making them suitable for children and adults aged 3 and above. Sizes available include S (31-34), M (35-38), and L (39-42). · Enhanced Safety and Reliable Control: Rear brakes in both skate modes allow for smooth deceleration and safe stopping. Durable rubber PU wheels ensure high-speed performance while maintaining secure traction. Adjustable straps and adhesive stickers provide a snug and secure fit. · Superior Comfort and Stability: The breathable mesh upper combined with soft, cushioned padding keeps feet comfortable during extended use. The molded polymer frame and sturdy aluminum alloy bracket deliver excellent stability and long-lasting durability. · Promote Active Fun and Healthy Exercise: These flashing adjustable skates encourage children to engage in physical activity, supporting bone, joint, and muscle development. Regular skating can improve sleep quality and boost immunity, making these skates an ideal gift for active kids. Specifications: · Material:  - Bracket: Aluminum Alloy  - Wheels: PU (Polyurethane)  - Upper: Breathable Mesh · Inner Shoe Length (approximate):  - S: 31-34  - M: 35-38  - L: 39-42 Package Includes: · 1 Pair of 2-in-1 Adjustable Four-Wheel Skates These innovative adjustable skates combine safety, comfort, and style, making them perfect for children and adults who want to enjoy skating with confidence and fun. Whether learning to skate or enhancing skills, these skates provide a reliable and enjoyable experience every time.