Heavy Duty On-Metal NFC Tag - Sticky Token - NTAG213 - Black - 30 mm with 5 mm Hole - 10 Pack - Compatible with G4S Secure Trax, Trackforce, and Silvertrac.

I bought some other standard NFC tags before these and they wouldn't read through my plastic/TPU case, even on a wood table. These NFC tags work great through the case, and I tried to put them on metal just to see if they would actually read and they do.

These feel very high quality in the hand. I am very satisfied with the adhesion from the 3M backing. Smart buy for the money.

Good product works as advertised

I was unable to write more than 137 bytes to a tag (using NFC Tools PRO). This limits me to performing about 7 basic system tasks on a tag, such as the tag I have set up in my car to turn notification volume up, alarm volume down, media volume up, wifi off, bluetooth on, brightness to 200, and open spotify at 131 bytes (highly variable size based on task you're doing). That maxes out a tag as there is no function I could find that takes only 6 bytes. They have a very short, full-contact only working distance. They work VERY well on metal compared to other tags I have tried which claim the same. They are thick, good adhesive for indoor use, I have not tried outdoors. Overall a fine chip but I was unable to use all of the usable space that was advertised for the chip (137 vs 144).

I like these reader , I purchase this to play around with my note 9 creating a tags that goes from setting my music to open a control app for my xbox.I was not able to created one to share my wifi, but I this that was me or my phone.

Bought these for the IOS 13 NFC Siri shortcut and they work perfectly!

Great NFC tags, however they are plastic not metal,. However the title says on-metal. Meaning the adhesive sticks well onto metal.

I've successfully changed what is written to these chips. They are easy to use -- you have to install an app on your phone to write to the chip.