Features: Multi-functional insert plate with rings, suitable for make your own router table for high accuracy woodworking processing. Made by durable aluminum alloy for long life use. Convenient center-hole bushing used to the router so it is centered in the bit hole. It is easy to operate, save effort and labor, and easy to manipulate and expand the use of the trimming machine at the same time. High-precision CNC machining makes perfect quality. Specifications: Material: Aluminum Alloy Color: red, black (optional) Size: 300 * 235 * 9mm / 11.8 * 9.3 * 0.4in Hole distance: about 85 * 85mm / 3.3 * 3.3in Weight: 1200g / 2.65lb Package size: 350 * 250 * 40mm / 13.8 * 9.8 * 1.6in Package weight: 1300g / 2.87lb Package includes: 1 x Router Table Insert Plate 2 x Insert Ring 1 x Hexagon Wrench 1 x Pack of Fixing Screws 1 x Height Adjusting Kit