negative sport ion watch for promotion  

1.Made by 100% grade of silicone
2.this anion watch can emit negative ions infrared which made you calm,sooth and relax your mine, also is relieves your body tension promote your sleep, improve concentration enhance your energys and your immune function.
3.light weigh, variety colors,fashion design,water resistance.
4.far infrared ray emittance
5.standarsize or customer designed size.
6.silk screen print, deboss,emboss are available.