Thickness: 19 gauge or 0.9mm (wire thickness, covering adds more)
Length: Available in 5m or 54m rolls
19g wire is what we call everyday millinery wire. We use it for most hat-making tasks that require wire like on a brim edge. For making structures, I would use 16g wire instead. Covered millinery wire is useful because the covering holds thread in place. When we sew a wire on an edge it stays in place rather than moving around. Cotton covered wire doesn’t have a particularly professional looking finish, so it is usually covered with something else when making a hat. Tulle, braid, ribbon and similar are frequently used for this purpose. Rayon covered wire, on the other hand, is a lot more presentable and can also be coloured with markers to blend in more with hair or a headpiece.