Router Table Insert Rings 3" Diameter Fits Many Sears Craftsman (Please measure your table prior to ordering): Amazon.com: Tools & Home Improvement
Model 3509 Deluxe Base Plate with Removable Insert Rings, Shoulder Pin and Corner Snuggers | Rousseau Co.
1-3/8" Insert Ring (for Template Guide Bushing) – JessEm Tool Company
Amazon.com: Router Table Insert Plate Aluminum Router Insert Plate Woodworking Router Table Mounting Plate with 2 X Router Table Insert Ring and Screws for Wood Trimmer Router : Everything Else
Router Table Insert Ring Set 97mm Diameter Fits Many Sears Craftsman Ryobi Bosch (PLEASE MEASURE YOUR TABLE PRIOR TO ORDERING): Amazon.com: Tools & Home Improvement
8-PC TWIST LOCK RING SET
Infinity Tools Router Table Insert Plate
Kreg Precision Router Table Insert Plate with Level-Loc Rings (Predrilled for Bosch and Portor Cable) PRS4036 - The Home Depot
Bosch 2610915125 Router Table Insert Ring Set - 2 Pack - - Amazon.com