6 Inch Boat Seat Swivel Plate Fishing Boat Marine Seat Swivel Rotation 360 Degree Rotation Universal Set - AliExpress

Seat Swivel, for Boat Seat, 8 Inches 360-Degree Flat Boat Seat Swivel Full Bearing Beads, Steel, Black Power Coated - AliExpress

6 inch 156mm Black Square boat seat swivel plate fishing boat marine seat swivel rotation 360 degree rotation universal set - AliExpress

SeaLux Universal Heavy Duty 360 degree Seat Swivel Base 6 x 6 Mount Plate for Bar Stool, Chair, boat or van pilot seat : Sports & Outdoors

SeaLux Universal Heavy Duty 360 degree Seat Swivel Base 6 x 6 Mount Plate for Bar Stool, Chair, boat or van pilot seat : Sports & Outdoors

Rotating Bar Stool Swivel Steel Boat Seat Swivel for Van Seat - AliExpress

Estink Seat Swivel Base, HeavyDuty Swivel Seat Base Steel Plate 360 Degree Rotatable 130kg Load Capacity Replacement Swivel Seat Parts for RV Camper Boat Bus, 4 Locking Gears : Automotive

2/3/4/6 Inch Rotating Podium Heavy Duty Bearing Turntable Boat Seat Swivel Plate Base 360 Degree Rotating Display Stand - AliExpress

5/6/7/8 Inch Heavy Duty Steel 360 Degrees Rotating Seat Swivel Base Mount Plate

AQUOS boat accessories 360° Swivel Folding Seat with Adjustable Height – AQUOSPRO

This is a replacement flat swivel zero tilt that goes between the seat and the frame of bar stools. Mounting Adjustable from 6 to 7-3/8 Perfect for passenger seating and front bow fishing seats on marine boat. The 52 ball bearings inside allow for 360 degrees of movement. The opening slotted holes for univeral fit, mounting directly to most standard seats and pedestalsthe Black EDC (Electrostatic Discharge Coating) finish for corrosion resistance.

SeaLux Universal Heavy Duty 360 Degree Seat Swivel Base 6 x 6 Mount Plate for Bar Stool, Chair, Boat or Van Pilot Seat

6 Ball Bearing Boat Seat Swivel