LEA Symbols by Barrier Free Access (HK) Limited Price US$POA Supplier/s Barrier Free Access (HK) Limited Supplier Code 250700 (IAPB) Country of Origin USA Request a quote Product Description LEA SYMBOLS® Crowded Symbol Book (250700) Product Features Testing Distance = 3 m/ 10 feet A booklet of 16 pages Page size: W: 12.7 cm H: 12.7 cm Includes response key, training cards and instructions For Distance Visual Acuity Assessment Share: