Powerful vibration and amazing suction surround the head of your penis in pure satisfaction. Pump provides concentrated pleasure with a soft. flexible internal vibration pad covered in teasing pleasure nubs. and a smooth. stretchy elite silicone donut that snugly surrounds your penis head. A quick release button immediately relieves suction and can be pulsed for extra stimulation. Arousing vibrations travel through the soft internal vibration pad and stimulating pleasure nubs. Requires 2 AA batteries. not included.