Distance Traditional Numbers 20 Ft. Chart
Distance Traditional Numbers Chart with lines 20/10, 20/15, 20/20, 20/30, 20/40, 20/50, 20/70 and 20/100. Shows Snellen/Sloan Numbers in Feet and M notation. Size is 11x24 in (27.5x60 cm)
20 feet/6 meter testing distance