2pcs- Deluxe Ceiling Porch Swing Hooks w Nylon Bearing Total length: Steel Perfect for residential porch swings.Wood screw thread. Zinc Plated 5/16 x 3-1/2” Weight capacity each approx 250 lbs. or 500 lbs as a pair. Maximum load limit for the twoassemblies holding a swing MUST NEVER EXCEED 500 LBS. TOTAL. Intended for residential use. Do not use on commercial playgrounds or other commercial applications. Do not install in live trees. Use pilot hole to install, no larger than 1/4" diameter.Made In USA.