LEA Symbols by Barrier Free Access (HK) Limited Price US$85.5 Supplier/s Barrier Free Access (HK) Limited Supplier Code 252700 (IAPB) Country of Origin USA Request a quote Product Description LEA SYMBOLS® Flash Cards (252700) Product Features Testing Distance = 3 m/ 10 feet A Set of 30 cards Card measures: 10 cm x 12.7 cm to 12.7 cm x 12.7 cm For Distance Visual Acuity Assessment Share: