A dildo is a sex toy, often explicitly phallic in appearance, intended for sexual penetration or other sexual activity during masturbation or with sex partners. Dildos can be made from a number of materials and shaped like an erect human penis. They are typically about the average length of an erect penis, 4–6-inch (10–15 cm), but some may be longer. A dildo's circumference is typically 4–5-inch (10–13 cm).
