6 Lb. capacity Ball Mill This is our most popular Ball Mill. It has a full 6 pound capacity, and is the perfect size for the hobbyist / milling small amounts of other materials you want to reduce to a fine powder. The 3 Lb. barrel holds over 3 cups in volume. YOU GET 2 DRUMS .YOU CAN GRIND 2 DIFFERENT MATERIALS AT THE SAME TIME. USE ONE FOR DIRTY PRODUCT AND ONE FOR CLEAN. Each (barrel measures 4.75" high x 4.5" in diameter). Grind most materials into a fine powder... or produce high-quality Black Powder / Rocket Propellant... in just a few hours. Includes 2 3 lb. Neoprene barrels with quick-seal, leak proof closures. Quiet, sturdy and simple to operate, this unit is built to last a lifetime. These units can also be used with liquid in the barrel without any worry of leakage. Continuous-duty fan-cooled motor that will never give you any problems. NO GRINDING MEDIA INCLUDED. PLEASE ORDER SEPERATLY