Dental Orthodontic NITI Reverse Curve Arch Wires (Rectangular) Super Ductility and Strength Combination, Suitable for Various Complicated Instance With Constant Elasticity, the Curative Effect is More Remarkable Advanced Surface Smooth Process Brings Long Fatigue Life Use: For dental orthodontic treatment Material: NITI Alloy Package: 2 pcs/pack We have sizes of 0.016x0.016 upper, 0.016x0.016 lower 0.016x0.022 upper, 0.016x0.022 lower 0.017x0.022 upper, 0.017x0.022 lower 0.017x0.025 upper, 0.017x0.025 lower 0.018x0.022 upper, 0.018x0.022 lower 0.018x0.025 upper, 0.018x0.025 lower 0.019x0.025 upper, 0.019x0.025 lower 0.021x0.025 upper, 0.021x0.025 lower |