The Little Thumper's vibrating bullet features 10 vibrating functions consisting of 5 speeds and 5 rhythms. This waterproof bullet is also removable so you can use it alone, or together with the plug. So you have 2 toys in 1! A note about the shape of this product: The head and neck of the plug is shaped to when plug is inserted it stays securely inserted. The handle is shaped so that the handle conforms comfortably to your body making extended wear more comfortable. The Little Thumper is made from pure silicone so it is body safe and phthalate free. Enjoy peace of mind with a 5 year warranty!