OUTER DIMENSION - The Tool Box Lock outside dimensions 4-3/8inch x 3-1/4inch, it comes with two matching keys. The lock cylinder on the has a shutter key slot to prevent dust and rain from entering the lock cylinder. It'll be a small, useful tool to prevent any dangerous situations from occurring when you're on the road. PREMIUM QUALITY - The Trailer Door Toolbox Lock constructed of Heavy Duty Rust- 304 stainless steel with zinc alloy cylinder. The treatment is bright chrome plating/polishing to make sure the toolbox and long service life, includes gasket for a secure, waterproof seaI. EASY TO INSTALL - The Lock for Truck , RV, Trailer, ATV, UTV Tool Box is easily installed to replace damaged or worn latches, just takes a few minutes to install. This perfect trailer door everything stays safely in place within their respective cabinets and drawers during travel. REPLACE TOOLBOX - Our Tool Box excellent fit and replacement for broken box . Saved you from having to purchase and install an entirely new storage box on your work truck, a lock replacement in many situations such as UWS, Better Built, Dee , truck, electrical cabinet, control cabinets, toolbox, power distribution cabinets, vehicles Tool box, Caravan, RV, Truck, Trailer etc. PROFESSIONAL DESIGN - This Heavy-Duty Industrial Grade with waterproof rubber gasket has a smooth, mirror-like finish and is designed to mount on a flat door , and the lock cylinder has a shuttered keyway to keep dust and dirt out., Weight: 0.6283174467 pounds, Manufacturer: Prterver