Stainless tumbling media pins. Cylinder in shape. This media is magnetic. The stainless steel media is designed to work with not only brass, but many other applications as well. Pins will not need to be replaced, as they will not wear out. The pins are .047" diameter, or 1.2mm, and .255" length, or 6.5mm length.

***The rock tumbler in the video is not included in this listing***