Easy to install: Product comes with 4 installation screws, which simply fix the threaded support rod to the table. [Wide range of applications]: Suitable for workbenches, woodworking, electric wood milling, etc., can clamp edge trimming machines with a diameter of 64-66 mm. Generally, the most expensive lifting base can only lift up to 40 millimeters (1.57 inches). product can be lifted up to 51 millimeters (2 inches), with an increase of 1 millimeter per revolution. [High quality]: The main body is made of hard metal, CNC machining, with a smooth and shiny. The stainless steel support rod is rust-proof and corrosion-resistant, and has a long service life. Color: Black Material: Metal Package Contents: 1 x Router Lift Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.