Stainless Clamp on Adjustable Fishing Rod Holder for Rails 1-1/2″ to 1-3/4″ (4-Pack). Mounting Type: Rail Mount. Brand Name: Amarine Made. Number of Items: 4. Unit Count: 4 Count. Fits Rod Size: 1.5 inches. Rubber insert to protect your fishing rod from any wear against the stainless surface. Can be mounted to vertical or horizontal rails – Adjustable for rails Rails 1-1/2″ to 1-3/4″diam. Heavy-duty white vinyl liners, Easy to install, mounting bracket includes bolts (allen key included). Rod holder can be adjusted to 20 different angles when mounted, for Rails 1-1/2″ to 1-3/4″. Stopper slot built into the base of the rod holder to located the rod butt into position. Rod holder can be adjusted to 20 different angles when mounted Easy to install, mounting bracket includes bolts (allen key included) Can be mounted to vertical or horizontal rails, Adjustable for rails 1-1/2″ to 1-3/4″ Rubber insert to protect your fishing rod from any wear against the stainless surface Stopper slot built into the base of the rod holder to located the rod butt into position.