SRIEI Adjustable Self-heating Magnetic Therapy Waist Belt Lumbar Support Back Waist Support Brace Double Banded Lumbar

L M XL. Made of high quality material, which is safe and comfortable to wear. The soft self-adhesive pad with high elasticity that is easy to take on and off. Adopting self-heating material which will help to improve the blood circulation. Promote metabolism, clear the meridians, and enhance immunity. Can effectively help to relieve physical local fatigue and pain, anti-inflammatory and analgesic, swelling. A good choice for your parents, friends or yourself