Stainless Steel Urethral Probe from Rouge for medical play. Stainless steel urethral plug is gently tapered for easy insertion. Ring pull at the top for easy removal. Designed for deep probing, its ring will lock perfectly under the head of your cock, allowing it to stay on for as long as you need it. Has a whole through it for easy ejaculation and urinate. Material: Stainless steel. Plug 9mm at the widest point, 38mm in length e or approximately .35 inch by 1.5 inches. Color Silver. Use water base lubricant.