What makes this dildo unique is not its head shaped tip and veiny shaft for a realistic feel. No, it is at the base where you will find a crank handle. Once inside of you, crank it to feel the dildo "squirm" inside of you Turn it slow or fast, it is up to you how much pleasure you want or handle Measurements: Approximately 10 inches in length (not including handle) and 5.25 inches in circumference at widest point.