Thumler's Tumbler, UV-10, ultra-vibe, stock number 183, is for dry polishing brass cartridges and comes with 3 pounds of reusable brass polishing media. The ultra-vibe tumbler gives ultra finishes with the process of tumbling.  The mass in the tumbler creates a cyclonic effect moving down in the center and up on the outside at the same time moving around the bowl. The UV-10, stock #183, has a removable polyethylene bowl with lid, with a 3 quart capacity.  Overall dimensions are 10" diameter X 11" high.  Shipping weight with 3 pounds of brass polishing media is 12 pounds. The tumbler is not to be used for rock polishing since the motor is lighter, has a thinner barrel and lighter springs than the rock tumbler UV-10 Industrial, stock #183IN.  A discount will be applied at the SHOPPING CART.