5/8″-11 Female Thread arbor. (c) 1 Piece of 4″ velcro pad holder (5/8″-11 Female Thread arbor). Important Remind: Pad Holder’s max veloity / capacity is 5000 RPM. 5 Pieces of V20 (20mm / 3/4″ High)Diamond Hand Polishing Pad for granite marble concrete quartz.