This is a professional grade rock tumbling /polishing kit can be used for FIVE 3 Pound uses. This kit will polish up to fifteen pounds of rock to a Glass like finish. This Kit works for all stones like; quartz, jasper, agates, Apache tears and similar stones. This Kit Will Polish 15 lbs. Of Stones To A Mirror Like Finish Don't Be Fooled By Others Grits On The Market That Offer Larger Quantities of Grit, This Is The Correct Amount Needed For High Quality Grit, If You Purchase Lower Quality Grit, You Will Need To Purchase Up To 4 Oz. Of Each Type Of Grit Per Three Pounds. Includes Free Polishing Directions and Measuring Chart This Kit contains enough grit to polish one batch of stones in a 15 lb. or 5 batches in a 3lb tumbler. The HIGH quality grits included are as follows: 16 Oz. Silicon Carbide 60/90 (Course Grind/1st Grind) 16 Oz. Silicon Carbide 120/220 (Medium Grind/2nd Grind) 8 Oz. Silicon Carbide 500F (Pre-Polish /3rd Grind) 8 Oz. Aluminum Oxide 1200 Fuzed (Final Polish/4th Grind) Sale Is For One (1) Brand New Polish Grit Kit, NO Tumbler, No Other Parts, Just What is In The Pictures.