Self-heating design with no power connection - The self-heating knee pads provide natural heat to the knee area through magnetic therapy. They deliver muscle support and comprehensive protection during exercise and daily activities. Suited for both men and women. Lightweight and comfortable construction - Built with a high-speed precision knitting process for greater flexibility and higher density, enhancing wearing comfort. Keeps your knees warm and is suitable for most users. Can also be used on calves, thighs, and arms to help relieve muscle pain and cramps. Effective and reusable - Magnetic knee warming therapy helps promote blood circulation, relieve knee arthritis pain, aid wound recovery, and keep the knee warm. The knee pads are washable with water and dry naturally for repeated use. Fashionable, comfortable, and performance-driven - Designed to integrate fashion, comfort and performance, the knee pads support a healthy lifestyle. We strive to provide professional and comfortable fitness products for everyone. use scenarios - During workouts or sports: provides warmth and joint protection without needing an external power source, supporting performance and comfort. - At home, work, or travel: keeps knees warm during long periods of sitting or standing, suitable for use on calves, thighs, or arms to relieve muscle tension. - After minor injuries or arthritis flare-ups: stimulates circulation and warmth to aid recovery and comfort. Materials and compatibility notes - Designed for versatile use across knee areas and adaptable to most users. No external power required. Reusable, washable, and naturally air-dries for convenient maintenance.