Most popular value priced, positive locking, open style rod holder; Power Lock Interior Diameter: 1.95″; Mount Dimensions: 4″ x 2″ x 2″; Bolting Dimension: 1 5/16″ x 3 3/16″ Universal cradle holds almost any rod and reel setup and has a front locking ring to prevent rod loss when travelling Includes 241 Combination Side/Deck Mount and can be mounted on top or side of gunnel Designed as a multi-functional rod holder for a wide range of large/medium or small fish species and virtually any watercraft Fully adjustable up and down and with 360 degrees of horizontal rotation