Excellent Quality: These heavy duty ceiling hooks are made of premium brushed 304 stainless steel, With well-constructed eye plate with closed hook, safe and sturdy design, processed with wire drawing treatment.High shine and smooth touch.Highly polished surface without burrs. Durable and rustproof.it works well in damp room and outdoor environment. 4 Pieces of M6 Hook:M6 Eye Plate Ceiling Hook.Steel Ceiling and Wall Hanging Hardware Fixture 304 stainless size: 3.5cm x 4cm, 100kg max load.Set of 4, come with stainless steel screws. Easy to install: This ceiling wall hook is suitable for mounting on walls solids, ceilings, floors, decks, trees, etc. Only a few minutes to drill screw holes and you can easily mount it anywhere indoors or outdoors you want. Widely Application: The 304 stainless steel eye pad is widely used in various fields such as home improvement, sports facilities, boat rigging. It is ideal for hanging porch swings, hammocks , swing chairs, punching bags, canoes, kayaks, bicycles, candles, potted plants, gym and boxing equipment, etc. Also ideal for boat and marine deck mounting hardware . Satisfaction Guaranteed: We're confident you'll love our stainless steel ceiling hooks