DESCRIPTION Well Made This innovative dock fender bumper is unlike traditional inflatable dock bumpers, as it does not require any inflation. Made from a durable material that outlasts traditional bumpers, it eliminates the hassle of inflating and the risk of leaks, allowing for extended use. Strong Protection Made of high-density and durable EVA material, this dock bumper boasts exceptional impact resistance, corrosion resistance, and fade resistance capabilities, providing your boat with comprehensive protection. 2 Installation Methods The dock bumpers dock edge features a removable base that allows for 270-degree rotation, providing two distinct mounting options: one for installation along the edge of the dock and another for installation at the corner of the dock. This innovative design provides you with flexibility and convenience in choosing the optimal installation location for your dock bumper. Spin Freely Once the dock bumpers for docking are installed, the dock wheel can rotate freely, preventing any scratches or damage to your boat's hull. The bumper's anti-slip design ensures a smooth and safe docking experience, allowing you to easily and confidently dock your boat. Size Choosing Kemimoto dock fenders bumpers size: 5.7in (high) * 12.6in (dia). Intended for use with boats 20-30 feet long, we suggest you use two on one side of the dock. SKU: B1610-01201GY FITMENT Universial fit.