[Full Body Relief] The 40” x 40” foot warmer is designed for versatile use. The foot warmer provides effective relief from tension, stiffness, pain, and cramps. Protect your feet from poor blood circulation, arthritis, and cold floors. [Fast Heating]: The electric foot warmer has 6 levels of adjustment and a fast heating function. The temperature range is 40°C to 60°C (104°F to 140°F). The electric foot warmer provides the best comfort and fast pain relief for your neck, back, legs, and feet. [Automatic Shut-off Function]: The heated foot warmer has a 4-stage timer setting function. If you forget to set the timer, it will automatically turn off after 2 hours. The LED timer indicator decreases by one level every 30 minutes. Prevents burns. [Skin-friendly Fabric]: The foot warmer on both sides is made of EXTREMELY SOFT MICROFLEECE FIBERS, which are exceptionally durable and warm. EXTREMELY SOFT MICROFLEECE FIBERS will keep the heat inside the pad and keep you warm. The electrically heated mat is machine washable and easy to keep clean.