1.Color:redgrid,grid gray, red diamond-shaped, gray diamond, twill red, denim blue 2. Material: germanium, titanium, anion Item NameTHB 2012 titanium ion sport necklaceModel Number MS-022MaterialTitanium,germanium,negative ions, fabric, POM/ stainless steel clipsizeSize: 17”-21” is OK or Custom sizeCertificationSGS report, Patent, SMQ reportpackingIndependent packing 150 pcs packaged inside a ...