Three piece kit is harness compatible. Small dong is 4.25 insertable inches (11 cm) and 1.5" (3.75 cm) in diameter. Medium dong is 6 insertable inches (15 cm) and 1.75" (4.25 cm) in diameter. Large dong is 7.25 insertable inches (18.25 cm) and 2" (4.75 cm) in diameter.
Suction bases provide a secure grip and easy control when attached to a smooth flat surface. Comfortable, durable SensaFirm is easy to clean and slippery when lubricated.