Check the listing for details. 2Pack Dental ART Root Torque Spring Orthodontic Spring 5 Loop Curved Anterior. Condition: New. Listed at 11.61 USD. Root Torque Springs 5pcs spring/pack. Total 2pack Available size: Large/Medium/Small Advantage: Exquisite handmade Good Memory ART Auxiliary for maxillary and mandibular anterior root torquing. This auxiliary efficiently provides any degree of labial or lingual torque by simply inserting it above or below the archwire in most multi-bracketed techniques. Its many benefits include: Providing excellent mandibular anchorage The ability to easily overcorrect and faster tooth movement. FDA STATEMENT The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, you can bid on this item only if you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.