Solid phenolic resin plate and plastic insert ring. Makes lifting router from table more convenient for comfortable bit changes, height adjustments and maintenance. Allows for easier freehand and guided edge work. Includes router plate, insert ring ID 38 x OD 102mm (1-1/2' x 4'), 2 x plate locking bolts, pattern routing pin and hardware pack. Accepts additional inserts for multiple size openings. Compatible with Triton routers JOF, MOF and TRA. 10mm (3/8”) thick. Plate measures 210 x 298mm (8-1/4 x 11-3/4"). 8-1/4 x 11-3/4"