Cabinet knob size: the size of the movable knob - 30mmx25mm, the handle on the outside is equipped with a fixing screw. Before placing an order, please measure the thickness of the drawer. Product material: door knob are made of high quality zinc alloy (aluminum alloy is lighter because hollow), strong and shiny structure and smooth appearance make it durable. Sufficient quantity: 4 button cabinet knobs are equipped with 4 corresponding mounting screws, single pack and packed in individual boxes. bags to prevent scratches. Easy to install: When using the armored door knob, drill a hole in the position to be installed, then pass the screw through the back of the board and tighten the knob , which is very beautiful and easy to install. Scope of application: drawer knobs are suitable for any cabinet, dresser and door, also suitable for decorating dressers, bedroom furniture , kitchen furniture, it is the ideal choice for the room.