This P-Pleaser has been designed for anal and prostate stimulation. The 2 stretchy ring shapes can be used to enhance the erection, operating as cock and ball rings. The largest opening is 36 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. The P-Pleaser can also work independently from the remote.Both the stimulator and the remote controller are rechargeable.