Product 1. Patella Stabilization Technology - Designed with an anti-collision gel pad to hold the patella in place and stabilize your ACL, PCL, LCL and MCL ligaments. It not only provides comfortable stability and dynamic force absorption for the knee, but also provides great support for joint stabilization, pain relief and faster recovery from injuries. 2. Relieve Knee Pain & Protect Your Joints - Reduce Pain & Recover Faster From Arthritis, Joint Pain Relief, Tendonitis, Post Surgery, Swelling & Strains & Sprains. Designed to reduce inflammation or swelling after injury and to help you recover from surgery. Ideal for meniscus tears, tendonitis, and runners' and jumpers' knee problems. 3. Double spring support--Adopt soft elastic spiral support to prevent the knee pads from deforming easily, increase assistance and contract foot joints, easy to put on and take off. 4. High Quality: Made of high quality nylon material. Please note that other knee braces do not provide this level of support, are very stiff, uncomfortable and will not last as long as ours. 5. Our knee pads will slide over your legs and fit snugly around your knee area to enhance your performance during sports or daily activities. Its breathable, stretchy material keeps sweat from building up while providing high-tech 3D knee protection. It is perfect for men, women and seniors of any age. Size: M: 27-32cm L: 29-35cm XL: 31-38cm Color: as picture shown Material: Nylon, Spandex, Silicone Note:1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding.2. The color may vary due to different monitors, please understand. Note:Hello, please pay attention to your delivery address when purchasing products. If your receiving information (such as: name, street, house number, doorbell/email without name, etc. is incorrect, the order will not be delivered correctly.)