Color classification red blue pink black Package Including Protective Gear Set Knee Elbow Wrist Wheel device Inline skates Applicable objects Male Female Child Shoe sizeThe size of the shoes is easy to adjust S number 3134 . M number 3538 . L number 3942 Wheel material high elastic wearresistant PU wheel Material PVC MUST KNOW BEFORE USING 1 Check that the wheels and moving parts are tight before use. If it is loose tighten it before use to ensure that there are no problems. 2 Regularly replace the brakes and ball bearings. 3 Children and young children must be accompanied by an adult. Wear Helmet and Protective Gear wrist arm and knee protection.before use to avoid accidents. 4 Avoid using on sidewalks streets or main roads to avoid injury to pedestrians and surrounding users. 5Keep control when skating. 6There is no towing vehicle. MUST KNOW BEFORE BUY 1 Manual measurement of the product the error is small. Please refer to the actual size. 2 The photo was taken under natural light because there is a slight color difference between the device and the display please understand.