The princess pleaser The Royal Princess is a 7.5 inch massager with seven hypersonic functions of vibration, pulsation, and escalation. It features a smooth texture and an indented 1.25 wide curved tip. The bubble is 1.5 in diameter, the shaft tapers and then widens to 1.5 to the base. The silicone Royal Princess also hosts easy control buttons and an LED light. Two AA batteries, not included, provide the powerful hypersonic functions. This waterproof massager is not like any other you have ever met.