Check the listing for details. Lapidary Tumbling Grit 1/4 Lb 80,220,500 Silcon Carbide Grit 1/4 Aluminum Oxide. Condition: New. Listed at 19.95 USD. Featured here is a 1/4 pound of each 80,220,and 500 grit.Along with 1/4 pound of Aluminum Oxide. This silicon carbide grit can be used wet or dry and is a less aggressive grit This grit is grey in color. that is good during the finishing part of a cutting or tumbling project. An example of how to use grits: Start off with and aggressive grit such as 80 for the initial cutting, then move to the 220 grit to refine the piece and then 500 to begin the polish and further refine, then walnut shell or cerium oxide to finish the polish. Keep in mind the above was only one example and application. Please note that your monitor and ours mayshow color differently. We take every precautionto show our product as accurately as we are able. We accept any of our product back no questions asked.With one exception it can not be cut or polished in any way.The material must come back the same way you received it.The Rockbuddies FamilyWould like to take a moment to say, Thank you!We have some amazing customers,that have supported us so loyally over the years.With out all of you we would not be here.Our sincere gratitude is offered to youand our hope that 2023 is an especiallygood year for you all!♥ -->