This Power-Lock side/deck mount is Scotty's most popular open-style rod holder. The universal cradle holds almost any rod and reel setup and includes a front locking ring to prevent accidental rod loss when traveling. Holder is constructed with fiber-reinforced nylon for strength and resilience on the water. Can be mounted on the top or side of your boat's gunnel. Design is fully adjustable up, down, and with 360° of horizontal rotation. Base: 4" x 2" x 2". Interior diameter: 1.95". Fiber-reinforced nylon is strong & resilient Fully adjustable design | Camping World Scotty Power-Lock Combination Side/Deck Mount