Top quality, US Made Halon extinguisher is simple to mount, with its flat mounting bracket with four holes. It is a 2.5 lb unit filed with Halon 1211. Machined billet aluminum construction, black powder coated finish. Pull pins actuate with easy, and do not rattle! Dimensions are basically 13.5” long, and 3” round. Mounting plate is 3” x 4”.