[Safely and easily installed] Ceiling hooks made of high-quality metal with maximum rust and corrosion protection. Safely supports up to 450 kg with a high-quality welding process, suitable for indoor and outdoor installation. Two pre-drilled holes allow for quick and secure mounting to wood or concrete surfaces. Installation can be completed in minutes. [360-degree rotatable] Features a strong, heavy-duty hook that rotates 360 degrees and swivels 180 degrees forward and backward, providing greater flexibility and reduced shaking. Includes a metal O-ring to prevent the shaft from slipping out. The hook closure is secure and durable for reliable performance. [Pure relaxation] This hanging chair swing spring set allows smooth swaying, rocking, and gentle rotation, enhancing comfort through cushioned movement. The steel spring helps restore or upgrade your hanging chair for a premium seating experience. [User-friendly installation] The ceiling hook set includes two pre-drilled holes for mounting to wood, wooden beams, rafters, or concrete. Mark the mounting holes with a pen, drill, then insert and tighten the included expansion screws or wood screws. [Versatile use] Professional ceiling mount and spring set ideal for hanging chairs, lamps, swings, hammocks, punching bags, sling trainers, yoga towels, awnings, and other suspended equipment. Color: Black Material: Metal Package Contents: 1 x Ceiling Hook 1 x Carabiner 2 x Expansion Screws 2 x Screws Note: Light and display differences may cause slight variations in color. Measurement may vary by +/- 1-3 cm.