The inclusion of copper to the nickel titanium alloy accentuates the thermal properties and working characteristics of the wire.
2 Wire stops are included for each wire
Activate at 35 ℃
The lower hysteresis of copper provides a lighter tactile force of the wire at room temperature which translates to additional flexibility providing for easier placement on cases with crowding conditions.
The unique alloy composition not only gives you easier insertion into the brackets, but also provides a greater resistance to deformation. 
Copper-NiTi provides controlled loading and unloading forces for a greater working time range, resulting in fewer archwire changes needed.
These controlled force levels translate to gentle, continuous forces providing consistent and predictable tooth movement throughout treatment.