With ribs at the top part of the shaft for extra stimulation, you can experience delights never before experienced with the Mack Tuff Ribbed Vibrating Silicone Dong. Sporting a bulbous head, it is a delicious sex toy to take in. The 5 inch long silicone shaft should be enough to send you calling deities as you climax with it. Now, turn on the vibes and you really got something to scream about. The 10 function bullet vibe is powered by 4 LR44 batteries and it can be activated easily with a push of a button at the base of the sex toy. A great sex toy... for a man that can take it!