Features:* Free 4 different cutter diameters * Free screws * Chamfer positioning.* Complete set of accessories is easy to install.* Scale mark, laser scale, not easy to wear, high processing accuracy.* Multi-function installation, smooth worktable, multi-hole installation.* Thickness processing, aluminum alloy material, not easy to damage.* On-site machine, need wood trimming and slotting. Specification:Plate Length: 235mm(9")Plate Width: 120mm(5")Plate Thickness: 7.5mm(1/3")Screw Hole Inner Distance: 70*62mm(2 3/4"*2 1/2")Outer Ring Length: 58mm(2 1/4")Inner Ring Diameter: 42mm(1 1/2")Rubber Ring Outer Diameter Is: 31mm, 31mm, 13mm, 7mm(1 1/4",1/2",1/4")Package Included:Free 4 Different Diameters Cutter Dust PlateFree Screws1 x Router Table PlateNote: Please check the goods design, size, shape carefully, and then compare your original goods before ordering, thank you. Light shooting and different displays may cause the color of the item in the picture to be a little different from the real thing. Since the above size is measured by hand, the actual size of the item received may be slightly different from the above size. Please don't worry, thank you!