The Invincible Marine 4-1/2 Inch Black Nylon Cleat is a durable and reliable choice for securing your boat to a dock. It serves as a mid-ship cleat, preventing damage to your vessel caused by rough docking. Simply fasten a sturdy rope around the cleat to keep your boat in place. The cleat is made of durable nylon and has a textured surface for added grip. Its open-base design makes it ideal for use onboard a vessel, ensuring safe and smooth docking every time.