Combination design: Install 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. Incredibly durable design: Made of The Best Nylon Material 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. Fish Finder Mount 1.5" Ball Base for Kayak WINDFRD-B15-TS10-RE11RA 1.5" Ball Fish Finder Mount for Kayak WINDFRD-B15-TS11-RE10 1.5" Ball Medium Arm Marine Electronic Mount WINDFRD-B15-ROM10-RE10 1.5" Ball Short Arm Fish Finder Mount B15-ROS10-RE10 1.5" Ball Medium Arm Marine Electronic Mount for Hummingbird 1.5" Ball Fish Finder Mount for 9" to 12" Large Fishfinder Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 240 4.6 out of 5 stars 17 4.8 out of 5 stars 490 4.8 out of 5 stars 490 4.7 out of 5 stars 44 4.4 out of 5 stars 20 Price $58.99$58.99 $63.99$63.99 $52.99$52.99 $49.99$49.99 $52.99$52.99 $69.99$69.99 Weight Capacity 2.2lbs (in motion) 2.2lbs (in motion) 4.5 lbs (in motion) / 15.5 lbs (at rest) 6.6 lbs (in motion) / 15.5 lbs (at rest) 4.5 lbs (in motion) / 15.5 lbs (at rest) 4.5 lbs (in motion) / 15.5 lbs (at rest) Material High-Performance Composite Aluminum Arm and High-Performance Composite All Marine-Grade Aluminum All Marine-Grade Aluminum All Marine-Grade Aluminum All Marine-Grade Aluminum Ball Size 1.5" (C Size ) 1.5" (C Size ) 1.5" (C Size ) 1.5" (C Size ) 1.5" (C Size ) 1.5" (C Size ) Height of Arm 3.74" (95mm) 3.35" (85mm) 5.59" (142mm) 3.35" (85mm) 5.59" (142mm) 5.59" (142mm) Included Components 3.88" x 3.94" Adapter Plate, Double Socket Arm, Drill-Down Mounting Track, Transducer Mounting Arm 6.23" x 2" Adapter Plate, Double Socket Arm, Drill-Down Mounting Track, Transducer Mounting Arm 6.23" x 2" Adapter Plate, AMPS Hole Pattern Round Base, Double Socket Arm 6.23" x 2" Adapter Plate, AMPS Hole Pattern Round Base, Double Socket Arm 4" x 2" Adapter Plate, AMPS Hole Pattern Round Base, Double Socket Arm 11" x 3.02" Adapter Plate, AMPS Hole Pattern Round Base, Double Socket Arm Compatible Devices Garmin: Striker 4, Plus 4, Vivid 4cv, Plus 4cv, ECHOMAP Plus 43cv, 44cv; Lowrance: Elite 3x, 4, 4x, 5, 5x, Hook Reveal 5, Hook 2, Hook 4, Hook 5; Humminbird: Helix 5, Piranha Max 4Di Garmin: GPSMAP 722, 722xs, 723, 723xsv, 742, 742xs, 743, 743xsv, Striker Plus 5cv, 7cv, 7sv, Vivid 5cv, 7cv, 7sv, ECHOMAP Plus 72cv, 73cv, 74cv, 75cv, 77cv, UHD 93sv, UHD2 5", 7"; Lowrance: Hook Reveal 7 Series, 9 Series, Elite FS 7, 9 Garmin: GPSMAP 722, 722xs, 723, 723xsv, 742, 742xs, 743, 743xsv, Striker Plus 5cv, 7cv, 7sv, Vivid 5cv, 7cv, 7sv, ECHOMAP Plus 72cv, 73cv, 74cv, 75cv, 77cv, UHD 93sv, UHD2 5", 7"; Lowrance: Hook Reveal 7 Series, 9 Series, Elite FS 7, 9 Garmin: GPSMAP 722, 722xs, 723, 723xsv, 742, 742xs, 743, 743xsv, Striker Plus 5cv, 7cv, 7sv, Vivid 5cv, 7cv, 7sv, ECHOMAP Plus 72cv, 73cv, 74cv, 75cv, 77cv, UHD 93sv, UHD2 5", 7"; Lowrance: Hook Reveal 7 Series, 9 Series, Elite FS 7, 9 Humminbird Helix 7, Helix 5, HELIX 5 DI, HELIX 5 DI GPS, HELIX 5 SI GPS, HELIX 5 SI GPS KVD, HELIX 5 SONAR GPS, HELIX 5 SONAR, HELIX 5 XD GPS Garmin: GPSMAP 1242xsv/Touch, 1222xsv/Touch, 1040xs, 1020xs, 740s, ECHOMAP 70DV, Ultra 122sv, 126sv; Lowrance: Elite-9 CHIRP, 9 Ti, 9 Ti², 12 Ti, 12 Ti², HDS Carbon 9, 12, Hook²-12; Humminbird: 800 & 900 Series; Raymarine: C120, Axiom 7, Axiom 9