Stopper slot built into the base of the rod holder to located the rod butt into position. Rubber insert to protect your fishing rod from any wear against the stainless surface. Adjustable for rails 32mm (1-1/4") to 50mm (2") diam. Suitable for both vertical and horizontal rails, this marine rod holder is adjustable at 32 different angles. Plus, installation is a breeze with the included mounting bracket and bolts (Allen key not included). Features: Versatile Mounting Options: Designed with the ability to be affixed either vertically or horizontally, this fishing pole holder suits a diverse range of rails. It possesses an adjustable fit, perfect for rails with diameters ranging from 32mm (1-1/4 ") to 50mm (2 "). Considerate Design: The boat rod holders for fishing includes a rubber insert specifically incorporated to shield your fishing rod from any potential wear that could occur against the stainless surface, thus extending the longevity of your equipment. Multiple Angle Adjustability: The fishing rod holders for boat offers 32 distinct angle adjustments when mounted, allowing for a highly personalized setup. It's designed for optimum adaptability to cater to your specific fishing needs. Easy Installation: The rod holder is simple to install with the provided mounting bracket and bolts. Please note, an Allen key is not included in the package. With this user-friendly design, your fishing experience is about to get a whole lot better. Thoughtful Addition: A stopper slot is integrated into the base of the rod holders for fishing to ensure precise positioning of the rod butt. This feature enhances the stability and avoid your fish rod holder from unexpected movements or falls. Package Includes: 1 fishing rod boat holder Listing and template services provided by inkFrog