If urethral exploration is your thing, you should surrender to the ultimate pleasure of these slick probes. The urethra is lined with über-sensitive nerve endings that can be extremely pleasurable when stimulated. Darüberber, deep urethral play is the only way to directly massage the prostate. OUCH. Features a variety of urethral probes for beginners and advanced users. This SUPER-LONG vibrating model is very flexible and the rounded tip allows for easy insertion. The probe comes with a single vibration mode and is extremely quiet with an incredible 12,000 RPM and less than 50 dB. One AAA battery (included in delivery). Made of super soft, phthalate-free, medical grade silicone. The Toy has an overall length of 45 cm and an insertion length of 35 cm. and a diameter of 0.5 cm (0.2 in.).