Leowire is made of stainless chrome steel. The wire is diamond-drawn to provide a highly resistant, rust-free and mirror-smooth surface. Properties: - Wire for hooks. - Leowire elastic hard round wire. - Suitable for any type of orthodontic use. Specifications: - Hard elastic. - Wire diameter: 1.0 mm ( 0.040 inch ). **For further product information, please contact Chat Support**