Black leather harness with a red Vac-U-Lock plug that you can use with the 8 inch vibrating cock that is made out of our UR3 material, or use with any of the attachments in the vac-u-lock system. The width of the cock is 1.5 inches for 3/4's of the shaft but expands to 2 inches in width where the vibrating mechanism is. 2 AA batteries, not included.