1.material:metal+smart ring,Eco-friendly,durable 2.custom design are welcomed 3.OEM/ODM are welcomed,suitable for all people Detailed introduction of metal keychainItem name2012 Newly keychainSizecustomizedMaterialmeatl,aluminium,PVC,siliconePrinting4C printing, carved , engrave,according to you designsample time4 days,free sample can be send to youFeature1. customized design2. promotional gift, ...