tea caddy----Development of an advanced nano-science and technology made,retain the traditional characteristics of purple. Zisha cupcan improve water quality, health-care regimen and can be long-lasting release of negative oxygen ions(1400/cm3).Produce small quantities of far-infrared, anti-bacteria, anti-bacterial, to keep water fresh. The long-term consumption of negative ions in water, the body's pH can be adjusted to prevent arteriosclerosis and other diseases, improve body immunity, reduce blood viscosity, eliminate fatigue, improve microcirculation, promote human longevity.