This is a FIVE Pack professional grade rock tumbling /polishing kit for a single use 3 pound tumbler. This kit will polish up to fifteen pounds of rock to a Glass like finish. This Kit Has 20 Pre-measured Packets, No Need To Measure, And No Mess. It also inculdes 1 pound of plastic buffer pellets. This Kit works best for quartz, jasper, agates, Apache tears and similar stones. **This Kit Will Polish** **3lbs. Of Stones, Five Times** **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. The 1 pound of plastic pellets that are included are used in a rotary rock tumbler to provide a cushioning buffer for the pre-polish and polishing stages. The pellets are brand new virgin plastic, which are white in color, about 1/8" in diameter and are flat like a disk. 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. The pellets supplied should be separated into two bags, one for the pre-polish grit, and one for the final polish. When starting the pre-polish stage, add the stones and grit to the barrel, add enough plastic pellets to bring the volume of the barrel to 3/4 full, then add water until the pellets just start to float. Seal the barrel and tumble as usual. When tumble is complete, simply use a kitchen strainer to separate the stones from the pellets, rinse and dry pellets then return to the bag. Repeat the process with the polish stage using the second bag of pellets to achieve professional results. Includes Free Polishing Directions and Measuring Chart This Kit contains enough grit to polish Five batches of stones in a 3 lb. tumbler. The HIGH quality grits included are as follows: 5- 3 Oz. Silicon Carbide 60/90 (Course Grind/1st Grind) 5- 3 Oz. Silicon Carbide 120/220 (Medium Grind/2nd Grind) 5- 1.5 Oz. Silicon Carbide 500F (Pre-Polish /3rd Grind) 5- 1.5 Oz. Aluminum Oxide 1200 Fuzed (Final Polish/4th Grind) 1- 16 Oz. Virgin Plastic Pellets 1/8"(For 3rd and 4th Grind) Sale Is For One (1) Brand New Five Pack Polish Grit Kit with One(1) Pound of Plastic Pellets, NO Tumbler, No Other Parts, Just What is In The Picture. The quarter and Agate picture are for size comparison only and are NOT included in the sale.