The Platinum Series Rotary Tumbler delivers the most effective brass cleaning process available. With a 7-liter capacity, you can clean up to 1,000 pieces of .223 brass at once. Simply add water and Frankford Arsenal Brass Cleaning Solution to your brass casings and let the wet rotary tumbler do all the cleaning. For an extra level of clean, add Frankford Arsenal Stainless Steel Media Pins to the mixture. The pins easily penetrate inside cases and into primer pockets to deliver unbeatable cleaning power. Rotary tumbling with stainless steel media in a liquid bath gets brass much cleaner and works much faster than ultrasonic or vibratory tumbling methods. This Frankford Arsenal Rotary Tumbler features a timer, so you can set the tumbler to run 0 to 3 hours and it will automatically shut off.