Springfield 1100019 Locking 12-Way Seat Swivel - 6.75" Square with 0° Tilt, Stainless Steel

Full 360° rotation Standard four-hole mounting pattern 12-way locking design 0-degree tilt Dimensions: 6-3/4" square x 1-1/8" heightYou may also like Springfield 1000605-L Seafarer Chair & Pedestal Package - White.