This is shaped as a dolphin as the name suggests. The nose of the dolphin has a bullet that is to be positioned on the clitoris to give vibrations and additional stimulation. It can be hard to place on the penis. I strongly recommend using a water-based lube to aid in the placement. The opening for the penis can only stretch to 2 inches, so for some men with a larger girth, I imagine this could be quite uncomfortable. The dolphin is made of jelly, so is very flexible and comfortable when in use. There is a second bullet that stimulates the underside of the penis, and I also noticed that it stimulated the anal area on me as well. The battery pack, which is separate, has individual controls for each bullet. So you can start off slow and speed up, or just shoot yourself into the stratosphere right off the bat. I found that the nose of the dolphin can be hard to position in just the right spot but was never painful to use.