Mini RFID Animal tag IC Available with TK4100, ATA5567, HitagS, and other LF ... tagFeatures Material: glass, with ferrite core insideSize1: ferrite: 2x10mm, tag: 4x20 mm (4±0.15mm x 20±1mm)Size1: ferrite ... : 1.2x10mm, tag: 3x18mm (3±0.1mm x 18±1mm)Other length of ... the glass tag available on request. IC Available with TK4100, ATA5567, HitagS, ...