Check the listing for details. 8 Ounces of Lapidary Tumbling 500 Grit Aluminum Oxide. Condition: New. Listed at 19.95 USD. © AP6.0 Featured here is a 8 ounce bag of 500 grit aluminum oxide. This aluminum oxide can be used wet or dry This is a grey grit. An example of how to use grits: Start off with and aggressive grit such as 80 for the inital 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 may show color differently. We take every precaution to show our product as accurately as we are able. If there is a color discrepancy please notify us. We will be happy to refund or replace your purchase. Please note that we accept any rock back no questions asked. With the following exceptions: The material must be in the same condition as it was when you received it. You cannot alter it in any way. No cutting or polishing of the material is allowed. You cannot change the material in any way. 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 you.♥