Dental Orthodontic Expander Expansion Screw Rapid Maxillary Split 8/9/11/13 mm
Type :Orthodontic Expander Swivel Keys. Type：Orthodontic Expansion Screw. used in lingual side. Made of high quality stainless steel ,for arch expansion in orthodontics. Expansion Capacity: Standard, 8mm,9mm,11mm, 13mm and Mini.