[Self-adhesive backing] chip comes with a self-adhesive backing, which can be attached to the back of your phone or to walls and other smooth surfaces for fixation. [High-Quality Material]The NFC coin card is made of high-quality material, small and portable, can be stored and stored, and convenient to use. [Easy to operate]Put your phone close to the 215 NFC card, and the phone will directly read the data in the card. Please note that it is not suitable for strong magnetic environments and metal surfaces. [Wide Use] chip has 504 bytes of available memory, has read and write capabilities, and is compatible with all NFC-enabled mobile phones. []NFC tags can realize information sharing and improve life convenience, making it an Perfect friends and relatives on birthdays, anniversaries, Christmas and New Year. Material: Paper colour: As Shown Package Contents: 50 x nft tags wifi 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.