3 pounds of 46/70 very coarse tumbling and lapping silicon carbide grit. A high quality grit well suited to rock tumbling and lapping. A great grit for the first stage of tumbling agate, jasper, and other very hard lapidary materials. This grit lot is shipped FREE to all USA ZIP codes in a sealed plastic bag in a USPS Priority Mail box. The shipping weight is approximately 3-1/2 pounds. Please e-mail me for exact shipping charge for non USA shipment.