ITEM NAME:For Woodworking Benches Aluminum Router Insert Plate Rings Screws With 4 K0K1 description: 100% new high quality Made by aluminium alloy, it is durable in use and not easy to rust. Convenient center-hole bushing used to align the router so it is centered in the bit hole. Color as shown Material: Aluminium alloy plate+plastic rings Size: Approx. 235x120x8mm/9.25x4.72x0.31" Uses: Make accurately drilling and mounting any router easy. Packing: 1 x Router Table Insert Plate 4 x Router Insert Rings 1 x Set of Fixing Screws.Material: Aluminium alloy plate+plastic rings.