ZB0405-120 Anti-Rust - Marine Grade Stainless Steel , can be used in Salty Water. withstand the corrosive marine environment * Heavy Duty Durable - Well Made Solid Stainless Steel Hinges , Bigger and Stronger. * Wide Application - Small boat hinges is ideal for boat cabinet flush hatch ,catables ,Yacht, RV, Roomdoors and other applications. It can be used anywhere you want. * Soft Close - It has buffer effect when closing the door,won't pinch your hand. * No Noise - close the door quietly,prevent noise from fast closing door. Product description Specification Marine Grade Stainless Steel Length : 100mm / 3.937" Width : 70mm / 2.756" Thickness : 4.8mm / 0.189" Surface Finish: Polishing Features 100% Brand new and high quality. The door hinges are constructed of 100-percent steel, ensuring durability and quality that will last. Great for use on all doors. Durable, rust-free stainless steel construction. Please allow slightly difference due to manual measurement.