Give gear holders in your kayak maximum adjustability with Scottys Gear-Head with Track Ball Mount. No. 440 low-profile track stays out of the way on your kayak until you need it. When the holder is in the track, to adjust, just twist and slide to find the perfect ergonomic position. Ball-joint construction allows adjustability so it smoothly moves right where you want it to, then tightens down to stay in position. Corrosion-proof construction is safe for saltwater use. Track: 1.75L x 0.375W. Mount: 9H. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Ball Mounts.