The Terminator™ is back and this time with an EZ squeeze bulb and one-touch vacuum release features. Stay Harder, Longer with the Vibrating Penis Enhancement System from Nasstoys! The multi-speed vibration and superior suction encourage longer lasting harder erections. The 7 inch inside sleeve is soft and ribbed for super sucking action. Base circumference is 7 3/4 inches and whole System stands 11 inches. Takes 2 AA batteries that are not included.