Remind: This is 110 Voltage. 3 Extra Pairs of Carbon Brush included. Carbon brush is consumable parts of all types of polisher. They need to be replaced when they are exhausted. Otherwise, polisher stop working. This package carries (a)-(f). Otherwse polisher stop working. (b) 8 Pieces of 5 (5 Inch / 125 mm) Diamond Wet Polishing Pad for stone concrete travertine. 1 X Grit 30 50 100 200 400 800 15 00 3000. And 1 Piece of 5 Diamond Glaze Buffer (it brings mirror like polished result to natural granite marble and natural stone). (c) 5 Pieces of 5 Diamond Dry Polishing Pad for stone concrete travertine ceramic. 1 Piece X Step 1, Ste 2, Step 3, Step 4, Step 5. (d) 1 X 5 (5 Inch) Velcro backer/Pad Holder. (e) 1 Piece of 5 Inch / 125 MM Diamond Turbo cutting blade for granite marble ceramic quartz. (f) 1 Piece of 5 Inch / 125 MM Diamond segmented cutting blade for granite concrete travertine. This polisher has no GFCI circuit breaker, our advice is plug this into a GFCI normally located in bathrooms and kitchens and using a extension cord from there.