Initiation Anal Trainer kit has 3 different sizes dongs made of comfortable, durable SensaFirmÀô which is easy to clean and slippery when lubricated. Suction bases provide a secure grip and easy control when attached to a smooth flat surface. The small dong is 5.5 inches x 1.5 inches for gentler exploration. The medium dong is 7 inches x 1.7 inches for powerful sensations. And finally the large dong is 8.5 inches x 2 inches for deep and intense play.