Small-pant size 2-4 (26-27 ), Medium size 6-8 (28-29), Large size 10-12 (30-31), X-Large size 14-16 (32-33) * The Belly Button attaches to almost any pair of unbuttoned pants. * Simply button your pants to the inside of the Belly Button using its patented button to add inches to the waist of your favorite pants. * The Belly Button conceals your unbuttoned pants and gives you a layered look.