Combination Design - Designed for kayak and SUP anglers needing an easy way to install the fishfinder screen and radar at the same time. The 1.5” ball design gives you a much greater clamping force for larger accessories while still having a smooth full range of motion. Has a few options of screw hole patterns to fit various fish finders (Complimentary 4 sets of 316 marine grade stainless steel machine screws, lock nuts and sheet metal screws). Designed for High Salt Marine Environment - Constructed of Powder-Coated Marine-Grade Aluminum and High-Performance Composite materials. The mount has been Salt Spray Tested for thousands of hours (including stainless steel bolts and springs) to resist high salt water corrosion. Complete flat surface and drill-down mounting solution make it possible to maintain the structure of the mount out on harsh waters. Adjust As You Like - The mounting base features rubber friction washers and stainless steel T-bolts; simply insert it into the track and turn the ball clockwise to tighten. Quickly change the position of the holder by twisting the ball counterclockwise. And the ball and socket technology allows for 360 degree adjustability. Compatible with Garmin: ECHOMAP CHIRP 72, 73, 74, 75, ECHOMAP CHIRP 92, 93, 94, 95, ECHOMAP Plus 7", ECHOMAP Plus 9", ECHOMAP UHD 6", ECHOMAP UHD 7", ECHOMAP UHD 9", ECHOMAP UHD2 5", ECHOMAP UHD2 7", ECHOMAP UHD2 9", GPSMAP 7" Series, GPSMAP 8" Series, GPSMAP 9" Series, Striker 5, Striker 7, Striker Plus 5cv, Striker Plus 7 Series, Striker Plus 9sv, Striker Vivid 5cv, Striker Vivid 7 Series, Striker Vivid 9sv, other Fishfinders and GPS Chartplotters. Compatible with Lowrance: Eagle 7, Eagle9, ELITE FS 7, ELITE FS 9, Elite-7 Series, HDS Carbon 7, HDS LIVE 7, HDS LIVE 9, HDS PRO 9, HDS-5 Series, HDS-7 Series, Hook Reveal 7, Hook Reveal 9, HOOK-7, HOOK-9, HOOK2-7 Series, HOOK2-9, other Fishfinders and GPS Chartplotters. Compatible with Humminbird: Helix 8, 9, other Fishfinders and GPS Chartplotters (NOT compatible with: the Humminbird Helix 5, 7, 800 & 900 & lon & Onix & PiranhaMax Series) Installing fish finder screen and radar at the same time. The 1.5” ball design gives you a much greater clamping force for larger accessories while still having a smooth full range of motion. Made of powder-coated marine-grade aluminum and high-performance composite materials for durability and reliability in the most demanding marine environments. Complete flat surface and drill-down mounting solution make it possible to maintain the structure of the mount out on harsh waters.