The smooth skin off this red shaft is accented by Smokey black lines, Near the base are four bulging knots from a very hard fire hound! The tapered tip makes insertion easy. The wide base provides powerful suction so you can go hands-free by placing it on any flat surface to keep it in place. Measurements: Overall length: 8.4 inches, Insertable length: 7.5 inches, Narrowest insertable diameter: 1/3 inches, Widest insertable diameter: 2.4 inches.