3 Surgical Retractor 12 mm x 55 mm, Downward Curve 3 Surgical Retractor 12 mm x 55 mm, Downward Curve SR3 Used to hold mucoperiosteal flaps, cheeks, lips and tongue away from the surgical area. 12.0 x 55.0mm Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.