This ratchet rail mount by Shakespeare, model 4188-S, is a must-have for any boat enthusiast. It is designed to securely hold antennas and other electronic devices, making sure they stay in place even in rough waters. The mount is made of high-quality materials that are built to last and withstand harsh marine conditions. With its user-friendly design, installation is quick and easy. The mount is compatible with a variety of rail sizes, and the ratchet system allows for easy adjustment and positioning. This versatile mount is perfect for any boat owner looking to improve their electronic setup.