It can lighten about 40kgs from your own weight! Each pad can withstand a weight of up to 20 kilograms. Makes you feel light, allowing you to lift each knee easily as you go along with your activities. This pair of knee pads is a breakthrough product that’s made to let you perform daily tasks more efficiently and comfortably. Powerful Rebound Spring Force-It works to support your thighs and calves, effectively reducing the pressure on your knees. Breathable Mesh, Non-slip Fabric- It’s comfortable… whether worn directly wrapped around your bare knees or over your pants. Painful knees and joints causing your steps to feel heavy and burdensome? These PowerLift Joint Support Knee Pads are here for you!   Color:black Weight:230~460g Packing size:32*10*9cm Quantity:1 pc/1 pair（optional） Package Included: 1 x pcs Joint Support Knee Pads or 1 × pair Joint Support Knee Pads