All metal body construction for added durability'Size 3: works with doors weighing less than 125lbs.'UL Listed: 3-hour fire rated for added protection and meeting building requirements'Interior doors: Left or right hinged doors up to 125 lbs. and 38" wide'Exterior doors: Left or right hinged doors up to 125 lbs. and 30" wide'Adjustable closing and latching speeds eliminate door slamming'Opening range: 180-degree for added convenience and pass-through space'Mounting: Standard, top jamb or parallel mount
