Hammock hanging kit comes with 2 M8 eye plates (LW80 50mm/diameter8mm), 8 stainless steel screws and 8 wall anchor bolts suitable for hammock hooks. The drill bit you need is 8mm. Heavy duty hammock hooks can be attached to wooden structures, brick walls, timber etc; hammock hooks for concrete, for indoor outdoor wall hammock, swing and included fixtures, heavy duty ceiling hooks attach the plates to brick wall, whether vertical or horizontal ceiling for swing chairs(br)M8 Hammock hanging hooks are made of 304 stainless steel(br) And we have also upgraded the screws to 304 stainless steel now, suitable for mounting on solid walls, ceilings, floors, decks, trees etc. Our hammock hooks can provide stronger support for HANGING PROJECTS(br)Ceiling hooks heavy duty, Hammock Suspension Heavy Duty Hooks Support 1100lbs when properly attached (550lbs per eye plate) making them perfect additions for bedrooms or children's playrooms(br)Enjoy a relaxing time if you have a hammock in your room, garden, patio, backyard(br)(br)(br), Hammock fittings perfect for hanging your indoor outdoor hammock chair, swing seat(br)(br)(br), Hammock hook hanging kit can also be used on brick built garage walls for included fixtures(br)