Features: Our yoga swing ceiling mount kit for swings provides 2 options, screws for wooden surfaces and expansion bolts for concrete ones. There's no need for extra purchases. It's simple to install onto wooden beams, rafters, or even concrete. The set of swing set accessories outdoor comes with an ideally efficient bearing structure, facilitating a smooth and noiseless rotation. Specifications: Material of swing hangers: stainless steel Color: as pictures shown Capacity: 1800 lbs capacity Package includes: 4 x Swing hangers 4 x Locking hooks 8 x Screws 8 x Expansion bolts 8 x Washers Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.