For lapped waistbands. Washable and Dry Cleanable. Adjusts up to 1/2 Inch. Instructions:Position lapped waistband to desired fit and mark underlap at edge of overlap. Sew adjustable eye to underlap 1/4 inch from mark. Opening in eyes must be toward finished edge of underlap. Place loose hook in middle eye. Position overlap over hook and eye at mark. Mark position of hook on underlap and sew. For maximum adjustment -Tighter - Place loose hook in eye closest to finished edge of underlap. Looser - Sew eye 1/2 inch from mark and place loose hook in eye farthest from finished edge of underlap.