Weewooday 20 Pieces Black Tag Stickers On Metal Round Tags Sticky 30 x 4.5 mm Hole, Compatible with NFC NTAG213 Enabled Cell Phones and Devices

I bought these and some of the white paper-thin tags, and there’s simply no comparison In terms of performance and durability. While the thin tags are good for uneven services, like a water bottle, there is simply no comparison in terms of sensitivity. I can trigger these black thicker tags with my iPhone within a couple centimeters which makes them much easier to use. The white paper-thin tags take some time for the phone to recognize them. These tags are so durable that I’ve had them outside (using them as door lock/unlock tags) and over the past couple months they continue to look and perform just like new. I’ve had the paper-thin tags on some water bottles and they haven’t fared well despite not getting wet. I will say both forms have good adhesion.

Cheap and simple for use with home assistant for automations

so far so good, work as expected, maybe I wish it had tapped edge, so it won't get easily caught by something going close by the surface where it was mounted.

Works on metal and other surfaces. The sticky backing works well. Many months in and it still sticks.

came on time. nice prudact

Although it was not clear from the description that these would work with Apple iPhone, I can confirm that they do. (At least, on my iPhone 14 Pro). They also seem faster to respond than some stickers that I had from a few years ago.

Does what I needed it for.

Funcionan perfectamente

Add says come to the sticky back these do not have sticky backs you'll have to glue them yourself