Experience a really devious play session... An instrument used in 'power exchange' or submission/domination experiences and just devious enough in its intended purpose The Power Exchange Vibrating Sound by Master Series has astounding potential! This sound has just enough vibrational power to offer a sensitive mind blowing feeling. For even more varied stimulation The Power Exchange Vibrating Sound can also be used as a pinpoint vibrator, with all the fun and exploration that entails. A devious enterprise indeed... Stainless Steel is: Non-porous, Hygienic, Easy to sterilize, Temperature resistant, Impact resistant, and has a long term value. Extra Large: 1.375 inches in circumference at the tip and .875 inches in circumference at the shaft. Total length of 11.5 inches with an insertable length of 6.5 inches.