DescriptionThis item is standard c-type eye testing chart, simple appearance design. Made with premium PVC material with clear printing, clear handwriting, reliable and durable to use. It is suitable for home, schools, and clinic use. The eye chart also can be used for pilot physical examination.Features- Color: Black and white. - Material:PVC. - Size:75.00X25.00X0.50cm/29.48X9.82X0.20inch. - Note:detection distance is 3 to 5 meters; the suitable suspension height is 80cm from the ground.-It is C-type visual testing chart, used to measure eye vision, clear printing and handwriting. - Made of premium PVC material, excellent and useful, durable and practical to use. - Can be hung in living room, bedroom, dining room, and for home decorations, etc. - Suitable for family, schools or small hospitals, great vision testing tool for you to use. - Simple in structure, easy to use, wear-resistant and reliable, you can use it with confidence.