Its a lot smaller than it looks. Its less than two fingers wide. The base of it is quite short so depending on your anatomy, it may not even reach where you want it too. The base doesnt vibrate at all, the inserted part vibrates which generally defeats the purpose of this thing altogether. Its VERY noisy. There is no way to change batteries in it so when its dead, its dead for good. One pleasant thing about it is its surface is very soft to the touch.