JYINCPED Dock Bumper Fender Provides Versatile Protection & Durable Construction for Both Dock and Boat Install on the side of the dock to protect the dock from being hit by boats and protect the boat from damage caused by contact with docks. Design Combines inflatable fender and permanent dock bumper to provide convenience for docking. Sturdy ribs of the dock fender bumper is durable enough to against impact. Round shape helps guide the boat down into the slip and reduce the rubbing. High Quallity Constructed from marine grade rotomolded vinyl, fearturing soft, tough, UV-resistant, impact-resistant and anti-tear to ensuring long-lasting protection for the boat and dock. The included mounting hardware are made of 304 stainless steel for rust-proof and long-lasting. Easy to Install Use equipment with special needle to inflate the dock fender and unsuitable inflation needle may damage the air valve. Insert vertically and completely the needle into the air valve of the fender to inflate it and tilting or incompletely inserting may damage the air valve. Install the dock bumper fender with 304 stainless steel screws and washers and secure attachment to your dock.