material: ABS engineering plastics + reinforced steel wire RFID chip: Impinj J41, or specify Frequency: UHF 860~960MHz. protocol vexillum: EPC Gen2, ISO 18000-6C Read/write distance: 30cm (according to the read and write device) Tag size: 30×23×11mm, steel wire 280mm long, steel wire diameter 1.5mm Working temperature: -40℃~+100℃ Tensile strength: 250 KGF Colors: rubrum, album, nigreos, flavo, caeruleum, other colors customizable …