chairpartsonline 6.25" Heavy Duty Replacement Bar Stool Swivel Plate - Made in the USA - S4695 Made in the USA - High quality, strong, & reliable bar stool swivel plate 6.25" Square top & bottom plates w/ full 360 degree rotation on pre-lubricated ball-bearings full round track Mounting holes are 0.75" long oval shaped slots & accomodate most 5", 5.25" & 5.5" square mounting screw hole patterns (Mounting hardware not included) Great for replacement use on many stools, bar stools, & chairs