The package contains high-quality NTAG213 NFC labels with a diameter of 25mm Waterproof and oil , and long-lasting Induction fast and accurate reading and writing distance 0-10CM The circular label is made of environmentally friendly PET material. The is smooth, wear-, and glossy. Circular stickers have stickiness and are easy to stick to the of most items. (Not supported on metal surfaces and strong magnetic fields) Chip protocol: ISO/IEC 14443 Chip model: D213 Storage/User 180B/144B Antenna size: 25mm Storage user: 13.56MHz Scratching frequency: 100000 times Sensing distance: within 10cM Fixation method: With adhesive backing, it can be glued together Scope of application: Patrol tags/Identity recognition/Anti counterfeiting traceability/Mobile sensor payment. Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Colour:As Shown Material:PET Package Contents: 100 x label sticker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.