This P-Pleaser has been designed for anal and prostate stimulation. With the longest end in the male ‘booty’, the shortest end will stimulate the perineum and the 2 stretchy ring shapes can be used to enhance the erection, operating as cock and ball rings. The largest opening is 47 mm and is meant for the scrotum. The smallest opening is 31 mm and is meant for the penis. The P-Pleaser is made of body safe silicone and has a powerful motor that offers 9 different vibration modes. Press and hold the power button for 3 seconds to turn the unit on/off. Press again to switch program. Press and hold to turn off.