High-quality materials: The large RV lock is made of high-quality zinc alloy and high-quality ABS, which is sturdy and reliable. The exterior is painted with non-polluting artificial paint, which is environmentally friendly and harmless, not easy to scratch, and has a longer service life. At the same time, you can choose between two colors: black and pearl white, to suit your interior. Function: The keyless flush knob lock can securely close your cabinet or wardrobe door to prevent you from opening the inner cabinet door when moving and shaking yachts, boats, and RVs. Scope of application: The knob cabinet lock is suitable for all kinds of RV cabinet doors, furniture drawers, cabinet doors, and cabinet furniture. Dimensions: For doors and drawers with a thickness of 15-18 mm, the hole diameter is 26 mm. Easy to install: You don't need to find a professional to install it. When you receive the package, the main part is already assembled. All you need to do is attach the locking screw.