YongHengGuan Industry & Trade Co., Ltd was established in 1994, which has specialized in producing magic pens for more than ten years. Our major products are water erasable pen, air erasable pen for garments and shoes, silver refill pen, cleaning pen and children doodle pens. The trace of water erasable pen can be erased by water, while the trace of air erasable pen can disappear spontaneously. And silver refill pens are widely used on leather marking.