The Cash Manufacturing Universal Straight Line Black Powder Capper is a solid metal body constructed of brass. The precision channel is fabricated with just enough space for smooth movement of 20 caps. Will feed every cap automatically when held in a vertical position while capping the nipple.FeaturesCompatible with CCI #10 Caps and Remington #11 Caps among many others4 1/2" x 1/4" x 1/4"