Germany Medical Cottle Periosteal Elevators are double-ended instruments used to elevate the periosteum during nasal surgeries. It is formed of a central flat handle that features two slender shafts and two dissimilar blades. One blade is arrow-shaped with a sharp edge, and the second blade is rounded with a blunt edge. The featured elevator is 19.5 cm in length the blades are 4.5 mm in size. The blades are graduated with centimeter markers to provide convenience for the operators measurements.