1- The White Round NFC Sticker is a flexible, PVC-coated sticker with a ferrite isolation layer, allowing functionality on metal surfaces. 2- Material Excellence Made from a flexible PVC-coated material, this NFC sticker measures 29mm in diameter. The embedded ferrite layer ensures its operation on metal surfaces, making it a versatile tool for any occasion. Dimensions: 29mm round Material: PVC-Coated, Ferrite layer 3- & Finish This White Round NFC Sticker comes in a sleek white finish. While these are stock items and cannot be custom printed, their white surface is suitable for adding your own labels or markings. 4- Cutting-Edge Technology Available with three different types of NFC chips, this sticker offers versatility in digital content sharing. Its compatibility with both iPhone and Android devices opens up a wide range of applications. Compatibility: iPhone and Android 5- Flexi-Programming Easily program the sticker using any NFC-enabled smartphone along with a free NFC app to manage the digital content it shares. 6- Our Free PowerTool Leverage our free online tool to link this NFC sticker to your digital business card, customer reviews, or any URL, providing a seamless digital experience to your clients or employees.