Allnice Alien 6 in 1 Thicken Skateboard Cycling Roller Skating Outdoor Sport Blading Elbow Knee Wrist Protective Gear Pads Safety Gear Pad Guard for Adult & Child Kid Use - Red+Black Color (M Size) High hardness PVC shell, thickened soft sponge, comfortable and durable. Velcro strap design, slip-resistant and convenient. Fine workmanship and fashion outlook. Elbow, knee and wrist 6pcs a set, bring you all-round and perfect protection while doing sports. The size is comparably run smaller, so I recommend that your size should be one size bigger. Suitable for skateboard, roller blading, riding a scooter, bicycle and many other outdoor sports.