Valeo Slimmer Belt with Built-In Massaging Magnets And Soft And Durable Neoprene For Comfort, 1 Size Fits Most, Black, VA7630BK MASSAGING MAGNETS: 16 built-in ionic magnets near the spine on the upper and lower back increases blood circulation, stimulate your body, and boost your sense of well-being MULTI-FUNCTIONAL: Improves blood flow, sheds extra water, slims & trims abdomen, and provides back support COMFORTABLE & DURABLE: Soft, durable neoprene for comfort with reinforced stitched edging for durability ADJUSTABLE SIZE: Easy Velcro grip closure adjusts easily for the best fit and one size fits most EASY CARE: Hand washable