From a tactile perspective Bakes Sounds provide the most spectacular sense of a sound traveling through ones urethra of any urethral sound. This is due to the relatively small contact area that this sound has with the urethra.
The Bakes sounds are unique in the respect that only 3/4" to 1 1/4" of the sound actually dilates the urethra, which translates to a very small contact area within the urethra. The smaller the contact area as the sound travels through the urethra the greater the stimulation.
Each set of Bakes Sounds includes 9 sounds that are 12 inches long and range in size from 12fr (4mm) to 20fr (13mm).