NEWLY REDESIGNED KA'OIR WAIST ERASER™ will have your waist, stomach & back looking amazing. This is a unisex fitness product which burns belly & back fat, sheds excess water and shrinks waist size....all while allowing your abs to be more visible. It allows you to spot train your stomach, back & waist. The WAIST ERASER™ is safe & very comfortable to wear at bed time. Burns calories while you're sleeping. This *Small - Medium (36 Inches). Women Fits up to 7/8 in jeans. Men fits Up to 33 in jeans.