[Safe and Easy to Install] 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. Pre-drilled with two holes for screwing into wood or concrete, can be installed in minutes. [360 Rotatable] Features a strong heavy-duty hook that rotates 360 degrees and swivels 180 degrees back and forth. Provides greater flexibility and reduced shaking. Includes a metal O-ring to prevent the shaft from slipping out. The hook closure is secure and durable. [Pure Relaxation] The hanging chair swing spring set allows gentle swinging, rocking, and turning for comfortable relaxation. With a steel spring, enhances your hanging chair experience and provides a smooth, cushioned motion. [User-Friendly Installation] Ceiling hook includes pre-drilled holes for mounting on wood, rafters, or concrete. Mark the mounting holes with a pen, then drill and insert the expansion screws or wood screws. Securely tighten using appropriate tools. [Versatile Use] Professional ceiling mount and spring ideal for hanging chairs, hammocks, swings, pendant lights, punching bags, yoga slings, awnings, and other suspended equipment. Color: Black Material: Metal Package Contents: 1 x Ceiling Hook 1 x Carabiner 2 x Expansion Screws 2 x Wood Screws Note: Only the items listed above are included. Other products are not included. Light and display settings may cause slight color variations. Measurement error allowed: +/- 1-3 cm.