This is a power steering pump pulley removed from a GM vehicle many years ago. It is a 2 groove v-belt pulley, approx. 5-5/8 inches diameter. The shaft hole is approx. ¾ inches and is a PRESS ON FIT pulley. (NO KEYWAY) The pulley has been powdercoated a nice semi-flat black. It has a paint imperfection on the front (visible in photo). This was a used pulley prior to powdercoat and may have imperfections.