ALL METAL & WATERPROOF: Made of high-quality, sturdy zinc alloy and aluminum with multiple casting processes, oxidation-resistant treatment, and wear resistance for long-term outdoor use. UV-resistant and waterproof to prevent fading. FITS MOST RV DOORS: Fits hole cutouts measuring 3.6 inches tall x 2.67 inches wide and door thicknesses from 1.25 inches to 1.5 inches. Designed for doors with hinges on the right side. Compatible with many travel trailers, trucks, and cargo carriers. Not suitable for Class A or Class C RVs. Please verify your RV door dimensions before purchase. KEYED SECURITY: Features a tamper-proof lock cylinder with thousands of unique key codes. Each key is uniquely coded for this lock only—no duplicates. Includes 4 mechanical keys. EASY TO INSTALL: Installs in approximately 10 minutes. Replace a broken lock yourself without professional assistance. SECURE & RELIABLE: Dual interior and exterior assembly with silent operation and smooth switching mechanism. Mechanical deadbolt with back-locking function enhances security and theft protection. Color: White Material: Zinc Alloy + Aluminum Alloy Package Contents: 1 x RV Entry Door Lock, 4 x Keys Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.