WireJewelry Asia Rock Tumbler Refill Kit - 3 Lbs. of Asia Stone Mix and 2 Batches of 4 Step Abrasive Grit and PolishThe WireJewelry Asia Rock Tumbler Refill Kit comes with 3 Lbs of Rough Asia Stone Mix and 2 batches of premeasured grit and polish that is conveniently packed in single use tear packs. Kit Includes: Grit and Abrasive Kit Includes (2 Batches): Step 1 Coarse: 60 90 Grit Silicon Carbide, used for the initial grinding and shaping of rough rock. Step 2 Medium: 120 220 Grit Silicon Carbide, used for smoothing of the initial grind. Step 3 Pre Polish: 600