These hook and eye style Two Staple Door Hooks feature a unique rubber bushing that prevents accidental unhooking due to vibration. All machined AISI 304 stainless steel construction provides superior corrosion resistance and durability. In addition, the rubber bushing reduces most of the rattling and noise common in other door hooks. Extra staple can be mounted to secure the cabin door in both open and closed positions. Easy to install, simply surface mount with six #8 FH fasteners (not included).