Outdoorsky Adjustable Breathable Waist Trimmer Magnet Therapy Acupuncture Belt Lumbar Lower Back Support Brace Belt Strap Raises the body temperature in the abdominal area to help optimize metabolism and burn off extra calories during exercises Uniform compressions exerted on the entire core area to protect the abdominal and lower back muscles from fatigue and strain Professionally Magnet engineered to retain body heat in the waist area to remove excess water weight during exercise and make your body warm Very suitable for body fear cold, cold lower back pain, muscle strain, lumbar disc herniation, bone hyperplasia, arthritis, body sculpting fitness routine health protection High-quality 7.5 x 37" belt fits up to 40" in waist size; Velcro closure is easily adjustable and accommodates users with different needs