1.Come with 3 angle grinder extender and 3 polishing pads.Extension Shaft included 75mm,100mm and 140mm lengths and polishing pads diameter are 30mm,50mm and 75mm. 2.Multiple sizes to meet your different needs.You can pick up the suitable one as you need,also can be used connected 2 or 3 extension shafts together to create unique lengths as required. 3.Metric M14 X 2.0MM Thread,thread diameter is 14MM,thread pitch is 2MM,thread depth is 18MM.Suitable for all M14 X 2.0MM thread machines,but not fit 5/8'-11 polishers. 4.Angle grinder extension connecting rod with notched for easy removal with a wrench,makes it more secure to install and quicker to remove, ensuring and saving time. 5.The rotating extension shaft has been designed with detailing in mind to address the issue of reaching tight and awkward areas such as round mirrors, spoilers, window sills, and bumpers when polishing with a rotating machine.By using an extended shaft, additional clearance can be provided to ly polish these areas without the risk of hitting/damaging the paint. 6.Widely used for roughing and finishing in tight and awkward areas in stone, furniture, wood, metal and automotive products, and for other operations in tight and awkward areas such as cutting, engraving, grinding and sanding.