I know there has been many reviews saying it's small, and many saying it's large. I got it today and I can say definitively: It's not large -- it's very large. This is not a problem for me as I am very large and have had problems with other such devices in the past. It's very well made and the vibrating mechanism is actually too good for a $25 device. I have a similar vibrating device on a Lelo unit that costs 5X as much. But be warned: If you are small or average, this thing will just rest on you and fall off. Go for another unit that is smaller.