flexNT NFC Tag [NTAG216]


The flexNT is one of our next generation, high performance, RFID and NFC compliant transponders. The flexNT is coated in USP Class VI, ISO 10993 tested biopolymer which gives it an extremely thin profile and flexible structure suitable for installation just about anywhere.

  • 13.56MHz ISO14443A & NFC Type 2 NTAG216 RFID chip
  • 8x22x0.4mm flexible biopolymer package
  • Fully NFC Type 2 compliant – compatible with all NFC devices
  • ISO14443A – compatible with all ISO14443A RFID systems

<!–This device is manufactured in batches. To get in on this next batch, order now.–>

More Details Partner Map

$199.00 $149.00


In stock (can be backordered)

SKU: 851294007158 Category:

More Details

WARNING This kit definitely contains dangerous things. The flexNT transponder has not been tested or certified by any regulatory agency for implantation or use inside the human body. Use of this device is strictly at your own risk.

The flexNT is a flexible biopolymer treated inlay approximately 8mm wide by 22mm long carrying the NTAG216 chip. The flexNT has the same chip as the xNT, however the flexNT offers many times the readability, range, and performance of the xNT. These devices are small-batch manufactured by hand in our lab, so not every flexNT will be uniform size. They are shipped in small sealed plastic tubes with chlorhexidine solution. Installation notes for your body modification or medical professional are as follows;

– Do not install under any gripping surface (e.g. no palm side installations)
– Do not install atop or parallel to any joints (flex device are only “semi-flexible”)
– Incise skin with scalpel, making 9mm wide incision
– Lift/separate dermal layer using elevator tool
– Remove dermal tools from installation site
– Slide flexNT under skin by hand, do not use gripping tools
– Suture to close wound, do not pierce flexNT with suture needle

Things to know about the flexNT

– The biopolymer is ISO 10993 and USP Class IV tested and certified, however the final product has not been tested post-processing, meaning material changes during processing could render the final product unsafe in some way. Testing is planned for later, however beta testers have had the flexNT since April 2016 and report no issues. Dangerous Things founder and CEO Amal Graafstra underwent the first installation of a flex line device (a flexNT beta) on 03/02/2016 above the second metacarpal of the ring finger of his left hand. So far the installation has healed excellently and there are no signs of rejection or irritation at the installation site.

– There is no “preferred” location for installation of a flexNT. Customers are free to install the flexNT into any area of the body their installation professional is comfortable with, as long as it is in the fascia layer between dermis and muscle tissue. Even though we use images which suggest installation above the second metacarpal of one of the fingers, it is not an ideal location for such a device. Fingers are filled with tendons, nerve bundles, and very important things all packed into a very tight space. We urge you to think about easier locations like the back of the hand or in the arm/wrist.


Here are some videos of the flexNT in action.

<!– –>


Products from Dangerous Things that Complement the flexNT

PN532 NFC Reader
PN532 NFC Reader
The PN532 reader module is an Arduino compatible RFID and NFC reader/writer module you can use to build custom projects and solutions with.
NFC Shield
PN532 NFC Reader
Adafruit has taken their popular PN532 breakout board and turned it into a shield – the perfect tool for any 13.56MHz RFID or NFC Arduino application.
Dangerous KBR1
The Dangerous KBR1 is an ISO14443A RFID/NFC keyboard wedge reader that will act like a keyboard and “type out” any tag UIDs it scans, as if someone typed the ID on a keyboard. Great for quickly reading UIDs from ISO14443A tags, making spreadsheets, and can even be used for quick and easy computer login!