Wall Eye Chart Dveda 11 X 22 Snellen Eye Chart for Eye Exams Vision Test 20 Feet

1. Familiar Snellen Eye Exam Chart with the big letter or symbol at the top and progressively smaller letters at the bottom of the chart down to 20/20 or better. 2. The eye chart could be used at a distance of 20 feet away from viewer. 3. Snellen chart includes Red and Green color bars for an easy and helpful color vision test. Made of PVC, it's washable. Perfect for optometrists, students, offices and schools. 4. Snellen Wall Chart size is 22"*11", there is a hole on the top center, could hang on the wall. ( Packed in roll, please use tape or nails to keep it flat when you use. )