Feature:1. Premium Material: The inflatable boat bumper kit is made of premium PVC material, can prevent the discoloration of salt water, waterproof, anti freeze, anti oil, elastic and anti aging characteristics, having excellent UV and chemical resistance to ensure a long service life.2. Protective Function: The boat ribbed bumper dock shield protection has a strong cushioning effect to protect the ship from damage or bruising caused by serious collisions, especially when the ship is docked or accidentally hits other ships, soft, not leaving any marks on your boat.3. Practical Use: The marine ribbed buoys docking bumper shield has an elliptical design to enhance its impact resistance and wear resistance, the double hole reinforced molding can be suspended vertically or horizontally, and equipped with 4 nylon ropes of 6.5ft length, 4 air noses, 4 pumps and one inflation pipe.4. Easy to Install: The marine ribbed docks shield protection has a simple installation, convenient and time saving, don't need too much tools or complicated steps.5. Versatile Use: The marine bumper ribbed buoys shield protection is suitable for wharfs, yachts, sailboats, rowboats, ski boats, canoes, pontoons, fishing boats, buoys, etc.Specification:Item Type: Inflatable Boat Bumper KitMaterial: PVCColor: BlackBumper Shield Protection Size: Approx. 4.5 x 16in/11.4 x 40.6cm (After Inflation, Measure Position Carefully)Rope Length: Approx. 6.5ft/198.1cmApplication: Provide strong cushioning, protecting the boat from severe collisions and scratches, especially when docking or accidentally hitting other boats. The soft and smooth surface leaves no marks on your boat. Also can be used as buoys.Fitment: Suitable for wharfs, yachts, sailboats, row boats, ski boats, canoes, pontoons, fishing boats, buoys, etc..Package List:4 xBoat Ribbed Bumper Dock Shield Protection4 x Nylon Rope4 x Air Valve1 x Inflator1 x Inflation PipeNote:It is recommended for small fishing boats or inflatable boats with a length of 16FT. If your boat is larger or heavier, it is recommended to purchase a larger billiard ball. Each boat is equipped with at least 3 boat bumpers for docking. There should be at least one pumper shield for every 10 feet of length, with a 20 foot boat having three pumper shields and a 40 foot boat having four. If you are moored in challenging conditions or your boat is heavy, add extra bumpers.