Big Horn 9-Inch x 12-Inch x 3/8-Inch Deluxe Router Base Plate. Inverting your router in a router table allows for safer and more versatile operations. Our deluxe router table insert is made from reinforced high pressure plastic. Large 9″ x 12″x 3/8″ thick design accommodates heavy routers and features Snap Out Rings for different size opening for various size cutters. The shoulder pin (included) allows for easy free hand work for molding, styles, rails and miters. Also comes with Cam Action Adjusters for snugging the plate to the table and eliminating side to side movement and locking it in place. Threaded Allen wrench inserts in each corner help you level and easily adjust the router insert with your table. Recessed edges along bottom of baseplate allow a nice sturdy fitting. Comes with four magnets for each corner.