Product material: PE 30%. Polyester 40%. Velvet 10%. Knitted 15% Other 5% Product weight: approximately 200g Product size: Size S Suitable weight: 15 kg-35 kg Suitable age: 2-8 years old Product features: good shell hardness, moderate sponge thickness, light weight, good shape retention, good breathability, pressure resistance and shock absorption, can effectively protect athletes. Applicable Compatible with: skateboarding, roller skating, inline skating, balance bike and other outdoor activities The product includes: (6 in 1) knee pads X2, wrist guards X2, hand guards X2 Color: purple rose red/blue black/black green (three optional) Strong protection High-hard PE shell, anti-collision protection, Compatible with thickened soft sponge lining that conforms to the ergonomic design of the knee and provides collision protection Compatible with the knees and elbows of boys and girls. Strong protection High-hard PE shell, anti-collision protection, Compatible with thickened soft sponge lining that conforms to the ergonomic design of the knee and provides collision protection Compatible with the knees and elbows of boys and girls. Professional, soft and comfortable. High-quality, skin-friendly and breathable fabric makes children's knee pads soft and smooth to the touch. Even in direct contact with the skin, your child can wear them comfortably for hours. Adjustable size Compatible with to fit. Adjustable shoulder straps ensure free movement during exercise, allowing your child to enjoy the sports experience freely. Suitable Compatible with boys and girls aged 2-8 years.