The Fish Fighter Universal Gunnel Tray Slider is a must-have for anglers looking to maximize versatility and secure gear mounting on boats with rubber gunnel railing. Built from marine-grade aluminum with a sleek powder-coated black finish, it's designed to fit railing systems from 2-1/4' to 2-1/2' tall and 5/8' to 7/8' wide. The heavy-duty 1' thick King StarboardA(R) Marine Plastic mounting block ensures durability, while the platform supports a wide range of popular rod holders and Fish Fighter accessories for a fully customizable setup. Designed to fit the Lower Rubber Gunnel Tray Rail on all boats with Rubber Gunnel Railing from 2-1/4' tall to 2-1/2' tall will adjust from 5/8' to 7/8' Wide Will work with Folbe, Scotty, Cannon, Fish-On, and Attwood brand rod holders Marine Grade Aluminum with Powder Coated Black Finish Mounting block made from 1' thick King StarboardA(R) Marine Plastic Fish Fighter Quick Mounts will bolt directly to the Universal Gunnel Tray Slider Works with all Fish Fightera" Rail Mount Accessories Kit includes: 1 mounting block 2 rail holders 4 1/4' x 3/4' stainless assembly screws 4 1/4' x 1 1/4 stainless accessory mounting screws Manufacturer's one year warranty Made in the USA