Kayak Rail MountThe Kayak Track Mount is designed to fit in 1/2 inch track systems. Fits most popular brands including Hobie, Wilderness Systems, Jackson, Vibe, Native, Harmony, Scotty, and Yakgear.Features2-points of contact- Won’t accidentally loosen on the waterGloved hand adjustable knobs360 degree positionable socketDimensionsLength- 5.75 inchesHeight – 2.2 inchesOverall Width – 2 inchesMaterialsReinforced Nylon Composite18/8 stainless hardwareWeight5 oz.WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov