Set of 3 Clear Insert Rings for Rockler Convertible Benchtop Router Table | Rockler Woodworking and Hardware
4-Piece Phenolic Insert Ring Set for Router Lift (RT-PIR)| SawStop
1 1/2" Phenolic Router Table Insert Ring - SawStop Part Store
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