This is a professional grade rock tumbling /polishing kit for a single use 3 pound tumbler. This kit will polish up to three pounds of rock to a mirror finish. This Kit works best for quartz, jasper, agates, Apache tears and similar "soft" stones. The pellets are brand new virgin plastic, which are white in color, about 1/8" in diameter and are round and cylindrical in shape and float in water. **This Kit Will Polish** **3lbs. 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. These pellets should be used during the final two polishing stages of rock tumbling. The purpose and benefit to using plastic pellets is to maintain volume. As progress is made in the removal of rough edges to the stones, the amount of free space in the barrel increases, which leads the stones to make repeated contact with other stones during the final stages, this can cause fractures and imperfections in the final result of the polished stones. The polishing stages are dependent upon contact with the barrel and the polishing slurry. Includes Free Polishing Directions and Measuring Chart This Kit contains enough grit to polish one batch of stones in a 3lb. or 2 batches in a 1.5lb tumbler. The HIGH quality grits included are as follows: 3 Oz. Silicon Carbide 60/90 (Course Grind/1st Grind) 3 Oz. Silicon Carbide 120/220 (Medium Grind/2nd Grind) 1.5 Oz. Silicon Carbide 500F (Pre-Polish /3rd Grind) 1.5 Oz. Aluminum Oxide 1200 Fuzed (Final Polish/4th Grind) 16 Oz. Virgin Plastic Pellets 1/8"(For 3rd and 4th Grind) Sale Is For One (1) Brand New Polish Grit Kit, NO Tumbler, No Other Parts, Just What is In The Picture. The quarter and Agate shown in the picture are for size comparison only, and are NOT included in sale.