The Nite Ize Gear Tie Cordable is a slim, reusable rubber twist tie for keeping charging cables and earphones neat. One end has a stretchy loop that slips over the end of a cord and stays there, so the tie is always attached when you need to wrap the cable up. Inside is a strong wire that holds its shape, covered by a tough rubber shell that grips well and will not scratch or mark. The ties are waterproof and UV resistant, so they work indoors and outdoors. The 3" (about 7.5 cm) size suits phone charging cables and earphones. This pack contains four black Cordable twist ties. Made in the USA.