These high quality ALU by Korea materal (light and hardness) shafts come in 3 inch (75mm),4 inch (100mm), and 55 inch (140mm), lengths and are notched to make removal easy with a spanner and will fit all M14 thread polishers.Please note these for a metric M14 threaded spindle.The extension shaft was designed with detailers in mind in response to the issue of reaching tight and awkward areas, such as round wing mirrors, spoilers, sills and bumpers whilst polishing with a machine.By using the extension shaft, extra clearance is offered to safelypolish these areas without risking striking/damage to the paintwork.colour:SilverMaterial:metalInner hole: 14mmPackage Contents:3 * Polisher Extension ShaftOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.