1 Piece of 4″ to 5″ (110V, 5/8-11 thread, 1000 Watt, side handle and handle, water feed system, GFCI circuit breaker, 3 extra pairs of carbon brush) New Version Wet Variable Speed Polisher. Carbon brush is consumable parts of all types of polisher or grinder. They need to be replaced when they are exhausted, otherwise polisher stop working. Many other sellers DO NOT attach the lock ring. 28 Pieces of 4 (4 Inch) Diamond Polishing Pad. 6 X Grit 50 100. 5 X Grit 200 400. 2 X Grit 800 1500 3 000. And, 3 Pieces of 4″ (5/8″-11 Thread arbor) Diamond Ultra Wide Segment Turbo Row Grinding Cup Wheel for concrete stone. And 1 Piece of 4 Professional Grade Glaze Black Buffing Pad (make stone granite marble mirror like polished). And 1 X 4 (4 Inch) aluminum backer/Pad Holder.