Pack of 5 with circuit. It has a read-write lock function that makes the cards can be repeatedly or read-only. Cannot be or reset after set as read-only tag. Compatible with all NFC-enabled cell phones and other devices. Features - Color: White. - Material: ABS. - Size: 3.80 x 1.60 x 0.20cm/ 1.49 x 0.63 x 0.08 inch. - Easy to operate, the process is simple, you just need to hover your phones over NFC coin tag, data will to your phones. - There is no needs for energy, battery or manual pairing, convenient to use. - Small size and material, the NFC sticker is small and portable to carry. - With glossy finish and waterproof material, effectively protecting the NFC chip inside. - NFC stickers can be applied to outdoor intelligent advertising, product , mobile phone supporting label, electronic label shelf and business card, etc. Package list: 5 x tags