drop-shaped design | chip type: 125 kHz EM4305 | with keychain | writable | black
drop-shaped design | chip type: 125 kHz EM4305 | with keychain | writable | blue
drop-shaped design | chip type: 125 kHz EM4305 | with keychain | writable | green
drop-shaped design | chip type: 125 kHz EM4305 | with keychain | writable | grey
drop-shaped design | chip type: 125 kHz EM4305 | with keychain | writable | red
drop-shaped design | chip type: 125 kHz EM4305 | with keychain | writable | yellow
drop-shaped design | chip type: 13.56 MHz NXP NTAG213 (NFC) | with key ring | only readable | grey