The 16-gauge steel twisted wire is sturdy yet flexible, and its rustic rusted finish offers an antique look. Suitable for both indoor and outdoor use, the versatile wire will adds a unique, rustic charm. 25 rolls, each 15 feet 16 gauge diameter Made of steel, this wire is a must-have for a variety of craft projects. Wire diameter is measured in gauges. The key is to remember the larger the gauge, the thinner the wire.