this near vision chart has 50% spaced rectangle (Massachusetts Visual Acuity Test format) with line sizes from 20/400 to 20/16 (6/120 to 6/4.8) equivalent - attached 16-inch (40cm) cord ensures proper testing distance - printed two sides - response key printed on test card - includes flash cards and instructions - 8" x 10" (20 cm x 25 cm)