A. Aluminum Table Insert Plate with 4 Rings for Woodworking Tables, 235mm x 120mm x 8mm B. Material: Made of aluminum alloy, the router table plate is durable and not prone to rust. C. Router Table Plate: - Size: 235mm x 120mm x 8mm. - Hole spacing is about 60 x 70mm. D. Easy to Install: Threaded hex key inserts on each corner assist in easily aligning and adjusting the router insert to the table. A convenient center hole ring aligns the router so that it can be centered over the drill hole. E. Safety: By turning the router into a router table, relatively safer and more versatile operations can be performed. It allows for precise drilling and easy installation of any router bit. F. Widely used: A multi - functional insert plate, suitable for making one's own drilling and milling table, and for high - precision woodworking. It can work with sawing machines to cut edge, groove, and mill wood. G. Features: 1. Made of aluminum alloy, it is easy to use and not prone to rust. 2. A convenient center hole ring is used to align the router so that it is on the center of the hole on the bit. 3. It is easy to drill and install any router. H. Color: black. I. Material: aluminum alloy plate + plastic rings. J. Approximate dimensions: 235 x 110 x 8 mm. K. Hole distance: about 60 x 70 mm. L. Contents: 1. 1 milling table insert. 2. 4 milling insert rings (3.5 cm, 1.2 cm, 1.2 cm, 1.2 cm). 3. 1 set of mounting screws. M. Thank you for purchasing the products, and have a happy day.