Orthodontic Stainless steel Arch Wire (rectangular). Type: Rectangular. Material: Stainless steel. 0.016x0.016 upper, 0. 016x0.016 lower. 0.016x0.022 upper, 0.016x0.022 lower. 0.017x0.022 upper, 0.017x0.022 lower. Leia Mais »