1- Our White PVC NFC Stickers are designed to seamlessly connect digital content to any metal surface, available in two convenient sizes 2- Material Excellence Created from solid PVC, these NFC stickers are specifically designed to function on metal surfaces without interference. Their solid construction ensures durability. Dimensions: Available in 25mm and 30mm sizes Material: Solid PVC NTAG213 4- Cutting-Edge Technology The NFC chips embedded in these stickers are compatible with both iPhone and Android devices. They work smoothly on metal surfaces, making them versatile and flexible for various uses. Compatibility: iPhone and Android 5- Flexi-Programming Easily programmable with any NFC-enabled smartphone and a free NFC app, these stickers give you the power to decide what digital content to share. 6- Our Free PowerTool With our free online tool, you can link these stickers to digital business cards, customer reviews, or any URL. Great for engaging customers or streamlining your business operations.