Flexes for intimate positioning! The Anal-Flex Probe has a soft, sensual ribbed shaft and 4 variable speeds of vibration using the push button controller. This power packed wand is waterproof too, so feel free to submerge. This backside toy has a usable length of 7in with a diameter of 1in. Two AA batteries are needed for vibrations (not included). The next level in anal satisfaction is here!