The bolt pattern on this swivel base will fit Cisco downriggers and thumbscrew mounts, also compatible with Big Jon downriggers/thumbscrew mounts
Heavy Duty Adjustable swivel base for CANNON downrigger with MAGNUM mount base
Smoothest swivel available Aluminum construction with stainless steel components 3 height Pre-drilled top plate 3/8 diameter stainless steel plunger
Traxstech Fishing Systems Swivel Base with Riser for downriggers Mounted to Tracks for trolling Fishing
Designed for serious sportsmen, the Lee's Tackle Inc. Swivel Base Rod Holder is the ultimate tool for bent butt tackle. Its unique swivel base allows the rod butt to rotate in the holder, reducing the possibility of line fraying and enhancing drag as the line streams sideways out of the roller tip. With a 0 degree vertical orientation, this rod holder is perfect for Giant Blue Fin Tuna fishing, where reel drags in the neighborhood of 60 pounds are frequently used.
Lee's 30 Stainless Steel Swivel Base Flush Mount Rod Holder - Medium - 2 OD x 6.5 Tube f-Small Bent Butts
Cannon Standard Mounting Base w/Magnum and Digi-Troll
SeaArk Track Accessory for Over the Side Mount/Swivel Base - Cornfield Fishing Gear
Bert's Custom Tackle SB-3 Swivel Mount Base MF2979
Seahorse adjustable swivel base with mounting base for Penn Fathom-Master downrigger. Hardware Kit for mounting of PENN Swivel-Matic© or Troll-Master
Seahorse Swivel Base with mounting base fits PENN Fathom Master by Troll-master
Product Review: Sea Swivel Trolling Motor Mount.
L.T. Marine 12 Heavy Duty Swivel Rod Holders – L.T. Marine Products
Glide Gear DEV Fishing Rod Holder Downrigger Boat Trolling Troll Gimbal Mount for Cannon 9 : Sports & Outdoors
Glide Gear DEV Fishing Rod Holder Downrigger Boat Trolling Troll Gimbal Mount for Cannon 9