Clear plastic blocks with bottom surface finished in white to show ray tracks & all other surfaces fully polished. Thickness available 12 or 15 mm. Set comprises of following seven blocks.
Rectangle 75 x 50 mm.
Triangle 90° x 45° x 45°, 75 mm. hypotenuse
Triangle 60° x 60° x 60°, 57 mm. side
Semicircle 75 mm. dia.
Bi convex 75 mm. long curved faces, 115 mm. radius
Bi convex 75 mm. long curved faces, 145 mm. radius
Bi concave 75 mm. long curved faces, 115 mm. Radius
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