2pcs- Deluxe Ceiling Porch Swing Hooks w Nylon Bearing Total length: Steel Perfect for residential or 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 two assemblies 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. Free shipping to USPS addresses from our South Carolina warehouse. Since 1993!