【Multi-Ship Adaptation Design】 Adjustable ropes secure to pilings, rails, or cleats. Suitable for fishing boats, yachts, pontoon boats, and other 10–35 ft vessels, providing reliable marine fenders for hull protection in various docking and mooring scenarios. 【Built to Last 】 Thickened PVC creates an air-cushion to absorb docking shocks. These inflatable boat fenders work as dock bumpers for docking, reducing hull scratches, friction and collision damage against docks and other vessels. 【Quick & Easy Inflation】 Inflate each boat fender in about 3 minutes with the included pump for fast and hassle-free setup. When finished, simply deflate and store them in the storage bag for compact transport and convenient storage. 【Secure & Reusable Design】 Quick-lock valves help prevent air leaks, while durable nylon ropes with stainless steel D-rings allow fast and secure tying to docks, rails, or cleats. Simply rinse, dry, and reuse these heavy duty inflatable boat fenders for long-term dock protection. 【Complete Fender Kit】 Everything you need in one set. This 4 pack boat fender kit includes ropes, an air pump, inflation needles, and a storage bag, making these boat dock bumpers ready for immediate use without needing extra accessories.