Steri Drape™ Instrument Pouch, 1 Case of 40 Safety Belts Circumference: Calf 12 to 151146 Circumference: Calf 12 to 15 inches 5V Pocket Scope Ophthalmoscope uses halogen light for true tissue color and consistent long lasting illumination * Model 12800 is lightweight and compact and comes with a rechargeable handle and has five aperture selections for general and specialist use * 48 lenses for better resolution * Its polarized filter reduces corneal reflection * Plus 12 aperture filter combinations for greater versatility: micro small and large spot sizes cobalt blue filter for corneal exams fixation target and slit aperture plus red free filter and unfiltered halogen * 2 2 Compartments Adhesive strips on each end of the pouch hold it in place