Packing list: 4 U-shaped hooks + 4 stainless steel spring hooks + 8 screws + 8 plastic expansion tubes. Enough to meet your needs [Quality material] The eye cushion and mountain buckles are made of stainless steel, the surface is smooth and burr free, corrosion resistant and durable. Load capacity: Maximum load: 0.3 tons. Maximum load per spring hook: 1 ton. Dimensions are shown in the figure. Easy to install: suitable for installation on wood ceiling, cement ceiling, brick wall, tile wall. [Wide range of applications] Our eye pads are ideal for all types of buckles, quick connectors and connections, mainly for ceiling and wall installations, fastening straps, ropes, wire ropes, chains, but also for small yachts and boats, indoor or outdoor installations.