The package contains high-quality NTAG213 NFC labels with a diameter of 25mm. Waterproof and oil-resistant, long-lasting. Fast induction with accurate reading and writing distance of 0-10cm. The circular label is made of environmentally friendly PET material, smooth, wear-resistant, and glossy. Circular stickers have strong adhesion and are easy to attach to most surfaces. (Not suitable for metal surfaces or 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: Adhesive backing for secure attachment Applications: Patrol tags, identity recognition, anti-counterfeiting traceability, mobile payment sensors. Note: Slight variations in appearance, color, and printed characters may occur between batches, but these do not affect functionality. Color: As shown Material: PET Package Contents: 100 x Label sticker Note: Light reflection and differences in display screens may cause slight color variation between the image and the actual item. Measurement error allowance is +/- 1-3cm.