A set of woodworking bench tools includes 1 router table insert plate, 4 pieces router insert rings and some fixing screws.Features Made by aluminium alloy, it is practical in use and not easy to rust.Convenient center hole bushing used to alig n the router so it is centered in the bit hole.Make accurately drilling and mounting any router easy.It is easy to use and make the work be well done.Specifications Material Aluminium alloy plate, plastics ringsType with 4 red insert rings, with 4 black insert rings (optional)Size Approx. 235 * 110 * 8mm / 9.3 * 7 * 0.3inHole distance about 62 * 70mm / 44 * 76inWeight 450g / 0.99lbPackage size 250 * 130 * 40mm / 9.8 * 1 * 6inPackage weight 520g / 15lbPackage List 1 * Router Table Insert Plate4 * Router Insert Rings1 * Pack of Fixing Screws