1,FOR NTAG215 CHIP: With 504 bytes of available NDEF memory. Suitable for URLs, text, small contact records, or single action phone triggers. Provides enough storage space to quickly write the desired information. Read, write lock function so that the card can be repeatedly edited or read only. Cannot edit or reset after being set as a read only label. 2,PVC MATERIAL: The stickers are made of durable waterproof PVC material, which can be placed outdoors or near water without losing its function. The surface is smoothly and glossy, wear resistant, stable, non toxic, and odorless. Please rest assured to purchase! 3,APPLICATION: Compatible with for TagMo for Amiibo and all for Android phones and other devices that support NFC. You can use NFC stickers to make an for amiibo card and share social media, music, business cards, Wi Fi connection, etc., to make your life more colorful! 4,30PCS: There are 30 pieces NFC stickers in the package that suitable for long term use or make replacements. 5,EASY TO USE: With a small size and a lightweight as well, these stickers are easy to carry and use, very convenient! Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.