Durable and comfortable material: Children's kneepads are made of high hardness PE shell, thickened soft sponge, durable material, breathable lining to prevent outside pressure. Protective equipment set size: Small (Knee brace: approx. 12.4 x 12.3 x 11 cm; Elbow pads: approx. 11.5 x 11.3 x 10 cm; Wrist pad: approx. 14 x 10 x 6.5 cm). Suitable for children aged 3 to 8 years weighing 20 to 40 kg (depending on the child's size). Adjustable belt design, free to adjust the size. (depending on the child's height). Adjustable belt design, free to adjust the size. For boys and girls: Knee brace sets are a great choice for children's Day, birthday, Christmas, etc. Your kids will love wearing our skateboard MATS. Knee and elbow pads protect your child while enjoying their favorite outdoor activities. Knee pads for outdoor activities: Protective gear for children is ideal for extreme sports such as skateboarding, mountain biking, roller skating or cycling.