*SIZE: 48"length×8"Width. *FASTER WEIGHT LOSS - This fitness waist trimmer retains heat in your abdominal area and back, increases your sweat levels and allows you to burn more calories. *BACK SUPPORT - The compression of the trimmer provides extra support for your lumbar and helps you exercise safely when lifting techniques. *MEDICAL FUNCTION - It is recommended for victims of back and spine trauma. If you find yourself having regular back pains, poor posture or just a really bad pain at the end of the work day, TUOY Waist Trimmer will give you the extra support you need to stand up straight by removing the pressure on your back and relieving sore muscles and arthritis. *COMFORTABLE FIT - Made out of neoprene material and contoured to comfortably fit around your waist. Engineered with a special non-slip interior grid surface to prevent slipping, bunching and moving. Adjustable Velcro closure fits up to 48''.