Master Series Mortal Coil Stainless Steel Urethral Sound

First of all: if you have no experience of urethral insertion, look up some information on how to use sounds safely before buying this type of toy.

This item is really a cross between a traditional sound and a urethral plug. The undulating shape can give some interesting sensations, and if the urethra dilates to exactly the right diameter the device can pop into place and resist removal in much the same way as a plug. The only downside is the flat tip: if you are looking for smooth, sensual teasing/stimulation then a traditional rounded-tip sound will be much more suitable. The flat tip is far from subtle and likes to let you know its location at every available opportunity, making this item most appropriate for BDSM-style play.