The Dingman Gag with 28x55mm Blade, Medium is a surgical instrument used primarily in ENT (Ear, Nose, and Throat) procedures, particularly during tonsillectomies, adenoidectomies, and other surgeries involving the oral cavity or throat. The Dingman Gag is designed to hold the mouth open and provide better access to the throat, allowing the surgeon to work with a clear view and improved visibility.