Frankford Arsenal Platinum Series 110V 7L Rotary Tumbler and Media Separator for Cleaning and Polishing for Reloading SPECS: With a large 7-liter capacity this tumbler can clean up to 1,000 cases of .223 brass at a time EASE OF USE: Features a maintenance-free drivetrain that eliminates the chances of needing to replace a belt and has a built-in timer in the base that can be set to run for up to 3 hours, shutting off automatically VERSATILITY: This tumbler can effectively clean without the use of stainless steel media pins and can clean using a mixture of brass cleaning solution and water