Powerful Rebound Knee PadsThe product is shipped based on the color or size of the main image of the product page.This product can support your thighs and calves, effectively reducing the pressure on your knees.Use breathable mesh fabric, non-slip fabric, comfortable to wear.Features:Each mat can support up to 20 kilograms of weight.Will help you perform your daily tasks more efficiently and comfortably.Strong spring force, can support your thighs and calves, effectively reduce the pressure on the knee.Breathable mesh fabric, non-slip fabric, comfortable to wear.It can be wrapped directly over bare knees or pants.Specifications:Item type: Knee PadsMaterial: APS+Alloy springColor: BlueQuantity: 1PC, 2PCS(optional)Knee pad size: Free sizePackage weight: 1PC: 260g/9.17ounces2PCS: 480g/1.05poundsPackage size: 1PC: 150*100*30mm/5.9*3.93*1.18inches2PCS: 310*175*45mm/12.2*6.88*1.77inchesPackage list:1 * Knee pad