Check the listing for details. Ophthalmoscope Square Head “C” Battery Chrome Plated Handle Optometry Tools. Condition: New. Listed at 24.99 USD. Material: Black Color Plastic and Chrome Plated Brass Size: Standard Description: A budget-friendly ophthalmoscope with all the important basic functions. Diopter wheel with 23 corrective lenses: plus 1, 2, 3, 4, 5, 6, 8, 10, 15, 20, 25, and minus 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 25 Easy to operate aperture hand wheel with semicircle, small/medium circle fixation star, slit, and red-free filter with contrast enhancing effect. Optimized high-performance optics with aspherical condenser lens. Parallel beam path Dust proof. 3.5V xenon lamp Requires 2 "C" batteries ( batteries not included) Key Features:Square head design: Provides a traditional grip and familiar feel for experienced optometrists.Chrome-plated handle: Offers a sleek and professional look while ensuring easy cleaning and disinfection."C" battery powered: Eliminates the need for frequent recharging, making it convenient for use in various settings.Benefits:Comfortable and familiar for experienced users: The square head design is preferred by some optometrists due to its established ergonomics.Durable and easy to maintain: The chrome-plated handle is built to last and can be easily cleaned for infection control.Portable and reliable: "C" battery power ensures the ophthalmoscope is always ready for use without relying on outlets for charging.