Hyrax Click Maxi Expansion Screw 12mm Straight 10pcs

Laboratory orthodontic expansion screw with anti-reverse lock mechanism (ClickPro) for controlled palatal expansion with fixed appliances. Features secure screw closure during active treatment phase, clear tactile feedback after each 1/4 turn activation, and safety key extraction system to prevent unwanted reverse rotation. The screw body measures 14.8mm with maximum expansion capacity of 12.0mm, constructed from stainless steel with clearly marked rotation direction arrow and expansion path. Package contains 10 pieces with 10 safety keys included.