[Safe and easy to install] ceiling hooks made of metal with maximum rust and corrosion protection, safely supports up to 450 kg with a welding process, suitable for indoor and outdoor installation. We have pre-drilled two holes for screwing into wood or concrete, can be installed in minutes. [360° rotatable] with a strong, heavy-duty hook, the hook can be rotated 360° and swung back and forth 180°. Makes the hook more flexible, less shaking. For safety, we have installed a metal O-ring to prevent the shaft from slipping out. The hook buckle is also strong enough for safety. [Pure relaxation] The hanging chair swing spring set allows you to swing, rock and turn softly and comfortably and see your suspension through the damping of shocks. With the steel spring, you can redesign your hanging chair and the most sophisticated seating option. [USER-FRIENDLY] The ceiling hook hanging chair set with two pre-drilled holes for screwing into wood, wooden beams or concrete. Mark the mounting holes with a pen and then drill with a drill. Tighten the expansion screw or wood screw and hammer it in. [Versatile use] Professional ceiling mount and spring Perfect for hanging chair, hanging lamp, swing, love swing, hammock, punching bag, sling trainer, yoga towel, awning, sling trainer, hanging chair, hanging, hanging. color: black Material: metal Package contents: 1 x Ceiling hook 1 x Carabiner 2 x Expansion screw 2 x Screw Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.