... 9g+/-0.5gStandard colorwhite, other color available (MOQ 10K)MaterialsHard shell:ABS,Cover foil:PVC(matt surface)Packaging200pcs per box, 2000pcs ... , laser engravingA customizes logo can be printed on the hard shell sideIC available at 125KHz nominalTK4100, EM4100, EM4102, EM4450,NXP Hiatg1 ... mangement and libraries. All you need under one roof Mango high quality RFID Clamshell card proximity card