The snap-on sleeve is ideal for marking cable after the electrical connection has already been made. The bottom of the snap-on sleeve is made of a rigid base that snaps onto the cable and the top of the sleeve is made of a soft, transparent PVC sleeve that is designed to hold a Universal Tag Si2K02 Series. Four sizes of sleeves to clip on wire diameters from 0.079” to .394” (2.0 mm to 10.0 mm). Meets UL-94 Class V-0 standards and can be used in temperatures ranging from -58ºF to 176ºF (-50ºC to 80ºC).