ProCare California Rigid Cervical Collar, Small, 4¼ Inch Height, 1 Each Recreation and Exercise 5V Pocket Scope Ophthalmoscope uses The unfolded towel measures 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 Absorbent pad dependably protects and helps maintain a dry environment 10 – 13 inches (measured neck circumference) Ideal for cervical spine immobilization and extrication