This exquisitely excruciating piece will spread you open and leave you completely at their mercy. Designed to be inserted into the urethra, the two rounded spreader arms are suspended from a threaded bar. Twist the center nuts open as far as you think you can stand to get started. Then, as you tighten down the outer wing nuts, the arms will be pulled further and further apart, forcibly dilating your urethral opening. Measurements Head ring measures 1.25 inches in diameter, spreader arms measure 1.25 inches in length and 0.11 inches in diameter, arms spread to a maximum width of 1.04 inches