Caspar-Type Bi-Valve SpeculaDDP Elite USA Caspar Type Bi Valve Specula is a highly versatile instrument that can be used in a variety of surgical procedures. The bi valved design of this specula allow for me to be placed in an opening and slowly moved apart to create a larger opening. This instrument is available with many different blades sizes including 40 mm, 45 mm, 50 mm, 55 mm and 60 mm making it well suited for many different surgical situations. Please note that website