Master Series Skewer Spiked CBT and Urethral Plug. Test your tolerance with a screwed up tool of tantalizing torment! The Skewer is perfect for solo use, but is also an excellent way for your Master or Mistress to punish you for their own amusement! Use the allen wrench to retract the screws and then slide the ring down your shaft. Secure the ring by then tightening the screws to your comfort level. Once you have replaced the urethral insert, lock it in place with the Allen wrench. The plug is hollow so that you can still urinate or ejaculate while you are trapped in this devious device! Measurements 4 inches in total length. Urethral plug is 3.25 inches insertable. Ring around cock is 1.3 inches in inner diameter. Material: Stainless steel. Color Silver. Note includes Allen wrench for assembling device. Disclaimer: These products as with all products on this site are supplied AS IS. No warranty is given either implied or expressed. Products are intended as novelty only, and no representation is made or implied as to their suitability or safety for any particular use. Purchasers use the products entirely at their own risk. The manufacturer or re-seller is not liable for any direct, indirect, incidental or consequential damage or loss howsoever arising caused by use or misuse of the products. This includes, but is not limited to, damage to the products and personal injury or damages due to use or misuse.