The 303/15 series Grafoplast? white (rigid part) and transparent (soft part) PVC Snap-on Sleeves 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 universal tag Si2K02 series. Four sizes of sleeves to clip on wire diameters from 0.079 to 0.394-inch (2 to 10mm).