LEA NUMBERS® 15-Line Translucent ETDRS-Style Distance Chart for ESV3000 Cabinet Sku(s): 270200 (Standard), 270200A (Scrambled 1), 270200B (Scrambled 2), 270211 (Roll-up) Description: LEA NUMBERS® ETDRS distance chart with proportionally spaced (logMAR); line sizes range from 20/200 to 20/8 (6/60 to 6/2.4) equivalent, 0.10 to 2.50. Available in three different versions of mixed/scrambled order when repetitive testing are involved. These charts fit ESV3000 Standardized ETDRS illuminated cabinet. LEA NUMBERS® Standard Chart is also available in a thinner translucent chart that can be easily rolled up. 13 feet/4 meters testing distance.