Inflatable Boat & Marine USA Boat Lift/Pull Ring-Hatch Locker Cabinet Drawer - 1-7/8" Marine 316 Stainless steel Precision cast 316 marine grade stainless steel. Maximum corrosion resistance and durability in the saltwater environment. Polished to a beautiful, mirror like finish. Designed for flush mounting. Size: 1 7/8". See additional details in product description below.