EASY TO INSTALL: Include 2 expansion bolts and 2 wood screws. There are two holes in the base of the swing hanger, and use screws through this hole to fix it on the concrete ceiling or wooden beam. The swing ring can be detached, even if your chain, rope or connecting buckle is closed, it can be connected. So it can be easily connected to items such as the hammock, swing chair or sandbag that you need to hang.