... Specification:Material: ABS+PVCDimension: 85.6x54x1.8mm Operational Frequency: 125KHz/13.56MHz/915MHz Available Chip125KHz chips:TK4100, EM4100, EM4102, EM4450, T5577 ... (T5567 updated version), Hitag1, Hitag2, HitagS256, HitagS2048,13.56MHz chips:Mifare 1K, Mifare 4k, Mifare ultralight, Mifare desfire ... System, Business card system, and etc. clamshell card Blank for custom made