Yeain Penis Dumbbell Exerciser is the product for man who uses physical stretching to improve male function, delay ejaculation, and extend erection time. Made of soft, flexible silicone, this ring is secure, comfortable, and the thickness of the center of the ring provides tension that spreads over a larger area.

It helps to increase penis enlargement, erection,delays ejaculation, prevents premature ejaculation, improve sexual desire, gain more orgasms, promote sexual harmony and enjoy the pleasure that sex gives you.

Bullet vibration plus double ball movement drives PC muscle movement. Under the action of gravity, the penile muscle unconsciously contracts up and down, promotes the division of cavernous body cells, accelerates congestions, and wakes up every sleeping neuron, so to enhance the ability of resisting sensitive stimulation and achieve the purpose of stiffness and endurance.

Increase male self-esteem and be a stronger man!