RING CRIMP TERMINALS Insulated ring crimp terminals.Size refers to the hole diameter.Three colours available; Red ~ 22 - 16awg / 0.5mm² - 1.5mm² Blue ~ 16 - 14awg / 1.5mm² - 2.5mm²Yellow ~ 12 - 10awg / 4mm² - 6mm²Operating temperature -20°C to +80°C.