Let's talk about sounding. First off, it can be very pleasurable. However! Urethral sounding (sometimes known as catheter play) is considered an extreme form of play that requires some research, lots of care, and the right tools. The Master Series Dark Chain Vibrating Silicone Sound is one of those tools. 

In body safe silicone, this beaded silicone sound is lightweight, flexible and (optionally) vibrating. Twenty-eight (yes, 28) potential modes of vibration come courtesy of a bullet embedded through the base. You can use the red button on on the bullet itself to activate and change up the vibration patterns, or you can use an included wireless remote.

Always follow a meticulous cleansing routine before and after using one of these (or any) urethral penetration deice. The Dark Chain's hypoallergenic silicone material can be very thoroughly cleaned - something you definitely want in a urethral device. Pop out the bullet before boiling, bleaching or meticulously cleanig the silicone portion before and after.  Always use the highest quality lube with any tool that'll be entering our or your partner's urethra - the best option is a sterile surgical or medical grade water based formula. USB rechargeable. Cord included. Remote takes 1 CR2032 battery, which is included.

* The Dark Chain is approximately 8.3"/21cm long. It's about 5.25"/13.3cm insertable and .2"/.5cm at widest insertable width