Ultra-Small UHF RFID Tag Rain - 10 Pack - KIT-16464 - SparkFun Electronics

These tags operate in the UHF (865MHz to 928MHz) band and contains a 96-bit EPC field that is programmable by the user.

UHF RFID Ring Antenna - SPX-15113 - SparkFun Electronics

Ultra-Small UHF RFID Tag Rain - 10 Pack - Unmanned Tech UK FPV Shop

Ultra-Small UHF RFID Tag Rain - 10 Pack - Unmanned Tech UK FPV Shop

New Ultra-Small RAIN RFID Tag for Wearables and Healthcare

Resistor 10K Ohm 1/6th Watt PTH - 20 pack - Proto-PIC

Sparkfun

Simultaneous RFID Tag Reader, M6E Nano (SEN-14066) - Proto-PIC

Ultra-Small UHF RFID Tag Rain - 10 Pack - Proto-PIC

From Ideation to Innovation - News - SparkFun Electronics

Small RFID Tag RFID Tags offer fantastic solutions for Industry

UHF RFID Ring Antenna - SPX-15113 - SparkFun Electronics