Specification Wheel materialPU wheelUpperSemi soft breathable composite material sandwich meshBracketDouble piece high strength aluminum alloy bracket BearingABEC 7 carbon steel silent bearingBrakeStandard single foot right foot brakeColorBlue Pink RedSize Chat SizeFor AgeEU SizeFoot LengthS3 7 years old26 3218 5 21 5cmM6 12 years old33 3721 5 24cmLOver 12 years old38 4124 26 5cmFeatures ADJUSTABLE SIZE The adjustable inline skates size can be adjusted Perfect for growing children ILLUMINATING WHEELS PU wheels with illuminating lights high performance bearings ensure a smooth and comfortable ride NO BATTERIES NEEDED STURDY ALUMINUM FRAME Inside the roller blades are a super sturdy aluminum frame which can protect your feet when you are skating DOUBLE SECURE LOCK This roller blades have double secure lock on it Provide skater a safer condition when using our inline skates BRAKE The brake device has higher safety performance Single foot brakePackage included 1 x Pair of Skating Shoes