This test is designed for vision screening at schools and assessment of vision of children with special needs beginning with age of 5 years. Proportionally spaced (logMAR); line sizes range from 20/200 to 20/8 (6/60 to 6/2.4) equivalent, 0.10 to 2.50. Has hole for hanging on the wall. 18″ x 20″ (45.7 cm x 50.8 cm). Folds to 18″ x 10″ (45.7 cm x 25.4 cm).