They create an unparalleled vibration sensation that you cannot resist. HOW TO USE: Moisten your hand with water and hug the Brazilian ball. The warmth of your hand and the moisture will cause the ball to dissolve within 3 to 5 minutes, releasing a lubricating fluid. This can be used to enhance your game or as a surprise element in your relationships. The outer layer of the ball is water, and the inner fluid is oil. Note: They are not compatible with condoms as they are made of oil.