Hands Free : Just hold the Autoblow 2 in place, and it will do all the hard work for you. You control the speed and intensity of the motorized up/down stroking motion.Plug it in : Autoblow 2 doesn't need batteries. Just plug it into any electrical outlet. Don't worry, we've designed it to be safe.Feels great : The first truly realistic alternative to traditional pleasure products for men. Perfect for couples, too!Sleeve system : Uses interchangeable sleeves. The sleeves are easy to clean, re-useable, and come in several sizes to fit all men.Size C: Girth 5.5-6.5 in (14-16.5cm)