1 Pound of Non-Abrasive Compact Ceramic Tumbling Media – featuring a cut cylindrical design with a 3/16-inch diameter and 3/8-inch length. Boost the quality of your rock tumbling outcomes! It optimizes the distribution of rock tumbling grit, dampens the noise produced by tumblers, and minimizes rock breakage during processing. The ceramic pellets designed for rock tumbling are reusable, making them suitable for use in every grit cycle throughout the rock polishing process. Ideal for shielding stones from damage or serving as a filling material during rock tumbling. It works seamlessly with tumblers and grits of all brands on the market. When operating tumbling or vibrating machines, this media can be used in conjunction with liquid compounds or plain water. Rock Tumbling Ceramic Filler Media Non-Abrasive Ceramic Pellets for All Type Tumblers