This polisher is 110V Version. This pack carries (a)-(c). (a) 1 Piece of 110V, 1000W, 1000 to 4500 RPM adjustable, 5/8-11 thread. Many other sellers DO NOT attach the lock ring. This polisher can work with all 3 Inch to 5 Inch 5/8-11 threaded or non-threaded tools. (b) 8 Pieces of 4 / 4 Inch / 100mm (10mm Thickness) Diamond Floor and countertop / vanity top surface Polishing Pad Renew Pad for concrete travertine granite marble stone quartz. 1 X Grit 50 100 200 400 800 1500 3 000 6000. (c) 1 X 4 Aluminum backer / Pad Holder.