Our range of HARD PVC NFC products that have the NFC chip completely encased so they are weather proof and waterproof. We sell them credit card sized form for use as contact / ID / business cards and in discs / coins or squares. Some are in sticker form so have the 3M glue on the back on them so they can be applied to surfaces securely. You will find options for use on metal surfaces with our anti-metal range too.