Fingers are great, because they seem to fit in all the right places. If only they vibrated . . . oh, wait, they can with a little help! Simply wrap the blue silicone sleeve of the Waterproof Finger Fun personal massager around your own digit and find a special spot. And, it's completely safe to use this vibrator in the shower or bath - take it anywhere your fingers can go! Dimensions: 2.5 inches long by 1.25 inches wide.