RFID wristband

I recently bought a reel of Ninjaflex TPE filament and wanted to test it on something useful. I need to carry two different RFID keyfobs for my work and I hate cluttering up my keyring, so here is my solution. The ribs are there so it can be stretched over my hand then shrink back to wrist size. On my print the RFID tags are very firmly held and will not fall out. This wont work in PLA or ABS, you definitely need a flexible filament. This could easily be adapted to hold a keyless car fob, US