The Nite Ize Gear Tie is a reusable rubber twist tie: a strong, bendable wire core holds its shape, and a tough, grippy rubber shell holds on without scratching or marking. Wrap it round and twist to bundle, secure or hang things, then untwist and use it again for years. Gear Ties are waterproof, safe in fresh and salt water, UV resistant and made in the USA, so they work indoors and out, at home, in the garage, on the boat or on a camping trip. The 3-inch (about 7.5 cm) size keeps phone and laptop cables, earphones and chargers neatly bundled, closes bread, produce and snack bags, and supports plant and flower stems. This pack contains 4 ties in black.