"Convenient, easy to use, and highly durable, the Scotty 1.5"" Ball Mount with Gear Head Post and Side Deck Mount holds your larger accessories securely. This extensively tested addition to the lineup of Scotty mounts brings a bigger ball design to give you a much greater clamping force, perfect for holding larger accessories while still having a smooth, full range of motion. Perfect for use with the Scotty Baitcaster Spinning and Fly Rod Holders (not included), the Scotty 1.5"" Ball Mount with Gear Head Post and Side Deck Mount operates easily: just click and lock any Scotty post-mount accessory into the Gear Head. Base mount: 2"" x 4"". Total height: 10"".Manufacturer model #: 162. 1.5"" Scotty Ball Mount with Gear Head Post and #241 Side Deck Mount Versatile addition to the Scotty ball-mount system Bigger ball design for greater clamping force Perfect for larger accessories Retains smooth, full range of motion"