1Reduce Collision Damage: Boat bumper have excellent cushioning properties and are crucial for protecting ships from collisions and damage, effectively reducing the losses caused by collisions. 2Impact Resistance: Made of high strength PVC, providing good abrasion resistance and impact resistance, allowing bumpers to withstand long term friction and collisions between ships and docks. 3High Durability: Marine bumpers have excellent resistance to UV rays, along with waterproof, freeze resistant, oil resistant, elasticity, and anti aging properties. 4Dual Hole: Two holes for vertical or horizontal hanging. Easy to install and remove, helping you protect your ship flexibly and conveniently. 5Broad Application: Boat bumpers are suitable for docks, yachts, sailboats, rowboats, ski boats, canoes, floating bridges, fishing boats, buoys, and more.4 x BoatBumper4 xValve1 x User Manual4 x RopeItem Type:InflatableBoatBumpersMaterial: PVCColor: Blue whiteSize: Approx. 5.5x20in/13.97x50.8cmApplication:Strong cushioning effect and canprotectboats from damage or abrasions caused by serious collisions, especially when the vessel docks or accidentally hits other vessels. The soft andsmoothsurfacewill not leave anymarkson your boat. As abuoy, it's also applicableApplicable:Ideal for marinas, yachts, sailboats, rowing boats, ski boats, canoes, pontoons, fishing boats, buoys, etc