【COMPLETE KIT】: Contains 4-step rock tumbling grit set - 2 lb each of 60/220 grit Silicon Carbide and 1 lb each of 500/1200 grit, plus 2 pounds of ceramic tumbling media 【PROGRESSIVE POLISHING】: Four-stage process from coarse (60 grit) to final polish (1200 grit) ensures optimal results for rock tumbling and stone polishing 【CERAMIC MEDIA】: Includes 2 pounds of 3/16" x 3/8" reusable ceramic filler pellets to help distribute grit evenly and prevent stone chipping 【VERSATILE USE】: Compatible with all standard rock tumblers and stone polishers, perfect for lapidary work and rock polishing projects 【CONVENIENT PACKAGING】: Our rock tumbler grit set each container measures 11.8 cm (4.65 inches) tall by 5 cm (1.97 inches) wide, includes nice hard plastic jars with lids Bottle caps are very secure. Definitely they will not leak. A scoop is included for precise measurement. Use the amount you need and set it back on the shelf for the next round. The jars are neatly packaged and labeled for easy identification. 【COMPLETE KIT】: Contains 4-step rock tumbling grit set - 2 lb each of 60/220 grit Silicon Carbide and 1 lb each of 500/1200 grit, plus 2 pounds of ceramic tumbling media 【PROGRESSIVE POLISHING】: Four-stage process from coarse (60 grit) to final polish (1200 grit) ensures optimal results for rock tumbling and stone polishing 【CERAMIC MEDIA】: Includes 2 pounds of 3/16" x 3/8" reusable ceramic filler pellets to help distribute grit evenly and prevent stone chipping 【VERSATILE USE】: Compatible with all standard rock tumblers and stone polishers, perfect for lapidary work and rock polishing projects 【CONVENIENT PACKAGING】: Our rock tumbler grit set each container measures 11.8 cm (4.65 inches) tall by 5 cm (1.97 inches) wide, includes nice hard plastic jars with lids Bottle caps are very secure. Definitely they will not leak. A scoop is included for precise measurement. Use the amount you need and set it back on the shelf for the next round. The jars are neatly packaged and labeled for easy identification.