Dildos are generally classed as non-vibrating there are however exceptions to this rule. Dildos are used for penetration of the mouth, vagina and anus and come in a wide range of shapes and sizes. Dildos generally come in two flavors, either realistic or non-phallic. From these two flavors they make up a range of different types such as a standard dildo or dong, double dongs as well as strap-ons. There are many features such as suction cups to hold the dildo in place, veiny shafts and balls for added realism, inflatable which expand once inserted, ejaculating ones which can squirt a liquid inside as well as other novel ideas. Dildos have been around for thousands of years and feature in ancient art and artifacts. The oldest known dildo has been dated to 30,000 years ago and was made from stone.