Vibrating Anal T 3.25 inches is a powerful jelly coated anal stimulator angled for prostate stimulation with cross bar at bottom to prevent inserting it too far. Classic vibrator features a twist bottom power control. Vibrating anal sex toy requires 1 AA battery, not included. Do not leave battery in the vibrator between uses. Probe measures 3.25 inches long by 1 inch wide. Bulk weight 2.2 ounces. A water based lubricant is recommended. Always clean before and after use.