【Quantity and Size】You will receive 1 pair of work knee pads in size L. Size L 50*21CM is suitable for leg circumference: 13.8-17.7 inches (35-45 cm), please measure from 10 cm above the knee. 【High-quality Material】The knee pads are made of polyester and neoprene; they are lightweight, wear-resistant, non-slip, shock-resistant, effective shockproof, and will not restrict your movement. The inner side of the knee pads is made of cotton, and the air holes do not stick to the skin, which is more suitable for working for a long time. 【Knee Pads for Work】 If you have to work on your knees for a long time, functional knee pads are essential. Our work knee pads are made from premium 20mm thick EVA foam to provide the softest and thickest support for your knees, allowing you to work for hours on construction sites, gardens, concrete, planks or uneven terrain. 【Adjustable】The knee pads are designed with one-piece elastic Velcro straps that can be adjusted to any degree of tightness, so you