Specification: New and high quality Product Name: ID Card | Paper Tag Material: PVC Diameter: 25MM Operating frequency: 125Khz Chip model: TK4100 Communication speed: 106KBoud Read and write distance: 2.5~10cm Read and write time: 1~2ms Operating temperature: -20 ℃～ 40 ℃ Erase life:>100,000 times Data retention:>10 years Packaging: anti-metal, soft/hard glue dripping on the surface (epoxy resin) Printing: CMYK offset printing, decorative color printing Scope of application: Access control, attendance management, parking management, identity authentication, all-in-one card payment, product identification, etc. Features: Read and rewrite key tags Compatible with all door entry systems Easy to carry Can read and rewrite Compatible with all RFID readers for access new key inductive card for entrance guard system. It applies to access control, hotel locks, staff attendance and school campus access and payment control, identification and security systems, parking and payment, social security management, transportation payment, municipal and related service payment Package included: 5 pcs Note: 1. Please allow 1-3mm error due to manual measurement. 2. Since different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the picture.