Specification Brand : TBS BulletPoint1 : Reduced water content minimizes freeze fractures BulletPoint2 : Color variety makes differentiating multiple specimens easy BulletPoint3 : Country of Origin : United States BulletPoint4 : We manufacture genuine products and export worldwide BulletPoint5 : Color : Clear ExternallyAssignedProductIdentifier1 : 0703510562838 ExternallyAssignedProductIdentifier2 : 703510562838 FinishType : Polished HandOrientation : Ambidextrous ItemName : TBS TFM-C Clear Tissue Freezing Medium, 4 oz. (Pack of 12) ItemPackageQuantity : 1 ItemTypeKeyword : professional-medical-clinical-diagnostic-test-kits Manufacturer : Thomas Scientific Material : stainless steel ModelNumber : 6725A60CS NumberOfItems : 12 PartNumber : TFM-C ProductDescription : Ishihara's Color perception test charts are recognized internationally as highly reliable method of determining color deficiency. With normal color perception, the images and numbers will all be visible. Each color test plate in this hard bound. Book is specially printed to measure incrementally higher color sensitivity and specificity. Ishihara Test for Color Blindness, 38 Plate Edition:- Popular and efficient test for red/green color vision deficiency Quickly differentiates between congenital and acquired defects Choice of 38 plate, 24 plate, and 14 plate editions.