Material is crystal glass combined with zinc alloy for durability and shine. Each handle measures 30mm in length and 25mm in width, with a 25mm default screw. Installation requires drilling a hole and tightening the screw from the board rear. Crystal surface reflects light, adding a decorative sparkle to furniture. Versatile design fits drawers, wardrobe doors, cabinet doors, cupboard doors, and dressers., Manufacturer: ENmrfvkz