1.Made of highest stainless steel, pre welded with buccal tubes or Lingual cleats.

2.Chinese size: #16, #17, #18, ~~~~~~#38,#39.

3.International size:#31, #31.5, #32, #32.5 ~~~~~~~#42,#42.5, #43.

4. High polished, bright shine mirror surface.

5.Clear size mark, identify easily.

6. High tech point welding, ensure strength weld tube to the band.

7.More easy, more durable.