Archwire Stainless Steel Expanded Rectangular Universal 0.016x0.016-0.021x0.025 10pcs/PackArchwire Stainless Steel Expanded Rectangular Universal 0. 016x0. 016 0. 021x0. 025 10pcs Pack. Excellent resilience, provide continuous force, ensure fast and effective tooth movement. Adjustment bends can be made accurately and quickly with a reduction in discomfort to the patient. The single greatest advantage of the premarked arch wire is the decrease in patient chair time made possible by eliminating repeated arch wire insertions to replace lost,