The perfect kit for mounting your hanging hammock or swinging chair. Included in the kit: Ceiling Mount - 316 stainless steel mounting plate securely bolts into beams, boards, or any other overhead surface. Included are four long stainless phillips head screws. Spring Hook - Rated over 500lb capacity. The spring helps relieve stress from impacts, and will increase the lifespan of your hammock, in addition the mounting surface. Hook Swivel - The hook/swivel will securely clip onto your hammock or swinging chair, enabling to you spin and twist without tangling or having to untwist.