Customized Printing Anti-metal NTAG®215 RFID Sticker is made of paper, softer pvc or pet material with customized printing on top with optional anti-metal adhesive backside . round 25mm ,30mm or customized size ,shape are available .13.56MHz and ISO 14443A protocol ,NTAG®215 chip with 504 user memory and widely uses for game sticker ,cashless payment ,social networking ,metal tools management ,etc . Customized printing and shape are available , normal working temperature is -25℃~65℃, with optional softer pvc or pet material can make our rfid sticker work on water proof or harsh out-door sunshine environment .