Parameters Frequency: customized 125KHz/250KHz/375KHz/500KHz Read distance: 2~10cm, depending on the Reader and the application environment Wipe the number: >100,000 times Storage: 10 years Working temperature: -20℃~+80℃ Material: PVC, PET, PETG, ABS, Paper Size: L85.5mm×W54mm, thickness 0.86mm or 1.80mm (1.80mm thick card with a portable hole)