LEA SYMBOLS® Proportional Distance Chart800722
A LEA SYMBOLS® pediatric distance chart with proportionally spaced lines; line sizes range from 20/80 to 20/8 (6/24 to 6/2.4) equivalent. This chart can be used in the illuminated ESV1018 cabinet or hung on the wall. Chart Set includes a response key and instructions along with the chart.
Measurements: 10" x 18" (25.4 cm x 45.7 cm).
Testing distance: 10 feet/3 meters.