Product Material: Sandwich breathable mesh, PP shell, stretched elastic band Size: S size: 3-7 years old, children 15-35KG Quantity: 1 set Package content: 1*Children's roller skating knee pad set Multifunctional Protective GearUPGRADED VERSION]: knee pad for kids knee pads elbow pads wrist guards protective gear set is lightweight and breathable, are designed for kids sports safety protection especially,for roller Skates,scooter,Inline skating,cycling,BMX bike,skateboard,Riding,ATV, skating, rolling, and other outdoor extreme multi-sports Secure and Comfortable : Adjustable elastic straps for knee pad for kids modify the size,for secure fit various kids girths.knee pad for kids the thickening design will be good protection during sport,knee pads material with plastic plates is comfortable and durable , ventilated EVA foam provides cool air flow and limits perspiration Boys/ Girls/ Kids Gift for : It is the best choice as the gift for Children's Day, Birthday, Christmas,etc. perfect for any girls, toddle,boys, It's a good present as a children/kids gift. Adjustable elastic straps :The knee pads Adopted Adjustable elastic straps would make a bit compression to the body for the safety reason, the reasonable stress could allow the body to hold the right position while riding with sport equipment such as bicycle, skateboard, inline skating, and other outdoor sports such as volleyball basketball bmx bike