"The RAILBLAZA MiniPort TracMount fits most existing tracks from kayak manufacturers and external mounting accessory companies. These compatible tracks include Wilderness Systems, Native Watercraft, Jackson Kayak, Feel Free Kayak, YakAttack, Scotty, and YakGear tracks. Basically, every track on the market. Want to reposition your accessory while you are on the water? Want to reposition your rod holder quickly while you are landing a fish? Want to reposition your camera mount while you are preparing to surf a big wave into shore? Repositioning within the MiniPort TracMount is now simple. Simply twist to loosen; slide; and twist back to tighten. 4.25""L x 2.25""W x 1.25""H.Manufacturer model #: RBMPTM. RAILBLAZA-compatible track-mount base Requires no tools for repositioning Fits Wilderness Systems, Native Watercraft, Jackson Kayak, YakAttack, Scotty, and YakGear tracks Simple loosening, adjusting, and tightening"