This is a new condition LAPIDARY TUMBLER BARREL. If you are irritated by tumbler barrell issues, this is for you! The barrel dimensions are 7.5″Dx5″H and it weighs 6 pounds (also holds 6 lbs. of rocks). Walls are 1/2 inch thick soft nitrile rubber with 10 internal flat sides for enhanced tumbling. End plates are rigid 5/16 inch thick aluminum. A 3/4 inch diameter stainless steel center post with a 3/8 inch threaded end is used for compression lid tightening using a stainless steel attachment nut. This will not leak and is extremely durable. It was used by an R&D facility and is an order-of-magnitude better quality than normal tumbler barrels. Shipping and handling is- $15 (US only).