20 ft: COH (10 Line) Chart SC Appropriate for ages 6-12
Description
Appropriate for ages 6-12
including back of hands
(16" x 21") Laminated
A child who isn't following the rules is a child who’s always in trouble
10-year manufacturer’s warranty
20 ft: COH (10 Line) Chart SC Appropriate for ages 6-12(9" x 14") Sloan optotype chart for vision testing at 20 feet. Features two smaller groups 20 25 to 20 12. 5 for repetitive eye testing. May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). The Sloan optotypes were developed on the same basis as Snellen optotypes. Sloan optotypes do not use serifs however, but do use a logarithmic geometric progression.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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