10 ft: HTO (11 Line) Chart SF25 Gauge rotates 360 degrees for

Gauge rotates 360 degrees for easy viewing from any angle

(100 Covers per Box) The phone guards will help protect your headphones and students from cross-contamination of any germs

Written in the award-winning Incredibly Easy style

Perfect for lunchrooms

10 ft: HTO (11 Line) Chart SF25 Gauge rotates 360 degrees for(9" x 14") HOTV optotype chart for vision testing at 10 feet. Useful for testing preliterate children from ages 3 5 years old. May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). HOTV optotypes are practical for use in schools for large vision screenings of younger children. Used for school screening stations nation wide, HOTV charts are also useful for all other preliterate screenings.