Rockler Router Plate Insert Without Opening

The interchangeable insert without an opening features a 4'' OD allowing this insert to fit into a standard plate with a 3-1/4'' opening. Is This The Right Insert For My Router Plate? Fits The Following Rockler Router Table Plates: Rockler Router Plate A (#54820, sold separately) Bosch 1617-1618 Bosch MRC23EVSK Bosch MRC23EVSK DeWalt 616-618 Makita 1100 Milwaukee 5615-5624 Hitachi M12VC (Fixed & Kit) Porter-Cable 690 Porter-Cable 890 Porter-Cable 7529 Porter-Cable 97529 Porter-Cable 8529 Rigid 2930 Combo Kit Rockler Router Plate B (#50007, sold separately) Craftsman Standard DeWalt DW621 DeWalt DW621K Freud FT 1700E Freud 1702 VCEK