Designed for bar stools, swivel chairs, and television turntables. It has a 1-3/16"-thick front and a 7/8"-thick back. Use this 3º swivel on chairs or stools designed with a slight backward tilt. Overall size is 7" x 7". Heavy 12-gauge steel plates run smoothly on a full ball-bearing race. Mounting slots on corners (5-1/4" center-to-center) accept roundhead screws or bolts.