Feature: 1. Integrated design makes it easy to put on and take off. 2. Craftsmanship, durability, heavy duty. 3. High-quality fabric: breathable, easy to sweat, soft, skin-friendly, anti-velvet. 4. The middle hole and cushion can relieve the pressure on the knee, avoid sliding, and make the knee curve fit closely.Plastic steel supports the knee joint; adjustable straps and anti-velvet hooks. 5. Applicable to: fitness enthusiasts, athletes, athletes, workers who need to stand for a long time, etc. Specification: Material: SBR, metal plate Colour: Black Size: M / L / XL M: 30 cm long, legs circumference 35-40 cm L: 30 cm long, 41-47 cm around the leglegs circumference XL: 30 cm long, legs circumference 47-55 cm Note: 1. The actual color may differ slightly from the image color due to differences in display and lighting effects. 2. Due to manual measurements, the size may vary from 0.5 to 1 inch. Package List: 1 pc x Kneepad