3M™ Unitek™ Preformed Lingual Arch, Vertical, 2.28 in. Length, .036 in. Diameter, With Loops, 305-158, 10/Pack

Arches feature two-point contact with sheath by means of two distal posts – one double, one single.

• .036 in. (.91 mm) diameter medium-hard Permachrome wire
• Arches feature two-point contact with sheath by means of two distal posts – one double, one single