The package contains high-quality NTAG213 NFC labels with a diameter of 25mm. Waterproof and oil-resistant, long-lasting. Induction fast with accurate reading and writing distance of 0-10cm. The circular label is made of environmentally friendly PET material. The surface is smooth, wear-resistant, and glossy. Circular stickers have strong adhesion and are easy to stick to most items. (Not suitable for use on metal surfaces or in strong magnetic fields). Chip protocol: ISO/IEC 14443 Chip model: NTAG213 Storage/User memory: 180 bytes / 144 bytes Antenna size: 25mm Operating frequency: 13.56MHz Write endurance: 100,000 cycles Sensing distance: up to 10cm Mounting: Equipped with adhesive backing for secure attachment Application: Patrol tags, identity recognition, anti-counterfeiting traceability, mobile sensor payment. Note: Different batches may vary slightly in appearance, color, and printed markings, which does not affect functionality. Color: As shown Material: PET Package Contents: 100 x Label Stickers Only the above package content is included; other items are not part of the sale. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3cm.