Made by aluminium alloy, durable and not easy to rust. Easy-to-use woodworker milling table inserts. Please pay attention to the size before buying. A helper of DIY woodworking at home. It is easy to use and make the work be well done. (WARNING)--Please check the size of our plate to make sure if it matches your router. Features: Made by aluminium alloy, it is practical in use and not easy to rust. Convenient center-hole bushing used to align 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 Product sizeAS SHOWN Package List A: 1 * Router Table Insert Plate 4 * Router Insert Rings 1 * Pack of Fixing Screws Package List B: 1 * Router Table Insert Plate 4 * Router Insert Rings 1 * Pack of Fixing Screws Package List C: 1 * Router Table Insert Plate 2 * Router Insert Rings 1 * Pack of Fixing Screws Package List D: 1 * Router Table Insert Plate