Crystal Knobs made from quality Crystal Glass. Not Plastic! The Screws Material of Crystal Knobs is Aluminum Alloy.This small drawer knobs can have a magical effect in decorating a room.^ Size:30X 25X 15mm.Perfect size for cabinet, dresser drawers, cupboard and wardrobe, it can give your furniture a sparkly new looking.^ Easy to install. Find the position where you want to install on the board and drill a hole , then pass through the screw from the back of board anf thread tight to the knob. Be careful during the work.^ Crystal Knobs is sturdy and easy to install. and we offer three size of screws and enough metal gaskets.^ The crystal drawer knobs shine in the light and make splendid visual effects in the room if several of drawer knobs are used, so as to liven up the room and make it elegant. Being beautiful, practical, and economical, the small glass knobs has recently been popular for decoration. ^