You can find the features of our Gorilla Overlander Drawer Systems below;2mm extra strong, static texture paint galvanized steel body.1.5 mm extra strong, static powder coated galvanized steel drawer.2mm extra strong, galvanized steel rail.Heavy duty, sealed roller bearings.Extra strong, galvanized steel nut and bolt system.Fiber yarn, water repellent exterior carpet covering.Extra strong, galvanized steel connection equipment.2mm stainless steel lock retainer.12mm, waterproof marine plywood.Lockable, keyed, grab-and-pull special handle system.Special carpet covering inside the drawers.Brake assist system that prevents rolling backwards.