(a) 1 Piece of Fixed Speed (5000 RPM) Wet Polisher (600W, 110V, 5/8"-11 thread Spindle. with very simple water feed design, designed for users who don't want to spend too much on wet polishing job). 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. It is 5000 RPM. 5000 RPM is especially designed designed for granite marble concrete polishing. Buyers please note that high speed grinder. (like 7500, 11000 RPM) are NOT appropriate for polishing since they burns the polishing pad and breaks the pad holder. The hose connector can simply and easily connect to garden hose. Low RPM make this polisher very good for polishing, but it is not very powerful. Please use it softly. (b) 16 Pieces of 4" Diamond Polishing Pad for concrete marble granite and 1 backer/pad holder. The 16 pads are: 3 X Grit 50 100 200 400, 1 X Grit 800 1500 3000 10000. (c) 1 Piece of B20 (3/4" / 20 mm) for 20 mm / 3/4 Inch high / thick granite marble concrete quartz glass countertop / vanit top edge bullnosing Diamond Brazed Router Bit to do radius / half / roundover bullnose. 1 Piece of 1 3/8" (35 mm diameter) diamond core bit / hole saw for stone concrete. The inner hole of this router bit is 7/8" to 58". it works with the polisher, since all our wet polisher had the lock ring nut pair to use 7/8" or 5/8" non threaded diamond tools.