Amarine-made Stainless Clamp on Fishing Rod Holder for Rails 7/8" to 1" - Lower Clamp - 7744sn-1 This product is a 100% brand new Amarine-made product Can be mounted to vertical or horizontal rails - Adjustable for rails 22mm (7/8") to 25mm (1") diam Rubber insert to protect your fishing rod from any wear against the stainless surface Rod holder can be adjusted to 32 different angles when mounted;Easy to install, mounting bracket includes bolts (allen key not included). lower position clamp