LS-16,Loose Prism Set 17 Piece,■ Diopter (△): 1/2, 1, 2, 4, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50
■ Total:17 pieces including one red filter lens
■ Size : 37x37mm
Material : Acrylic
■ Package : Aluminum Case Manufacturer: AMPELOS GROUP – Korea,Ishihara Test Book- 38 Plates,Manufacturer: AMPELOS GROUP – Korea