Knee Pads 1, Material: plastic,sponge 2, Min.Q'ty: 48 3, BEAUTIFUL! UNIQUE DESIGN! Knee Pads1, Size: kneepad-4.3"(L)*3.1 ... and ventilative function, offer maximum protection from impact to the knee joint in many activities such as riding a bike, skate ... Price, Quality and Customers'Market. 48 Pcs New Professional Protective Knee Pads