Space Shuttle Poster Set, set of four blueprints shows you the placement of the different types of thermal insulation that was used on the Space Shuttle, types of materials used in various areas changed as the Space Transportation System evolved, Set of 4 posters: 12 x 18 in
Tech-Med* Jaeger Eye Chart, Durable, laminated plastic eye chart used for reading up close and for determining near vision, Printed on both sides, Size: 4-3/4 x 7 in
Tech-Med* Plastic Eye Chart, 20 feet, test distance with non-reflective matte finish, Kindergarten eye chart features shapes like boats, hearts, stars, and circles, Tumbling E's chart features E's in different directions, Snellen chart features letters of the alphabet
Tech-Med* Pocket Eye Test Chart, Use at 14 in Provides 20/800 distance, Durable, laminated plastic, Metric & English Scale on back, Size: 6-1/2x 3-1/2 in
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