SET OF ACRYLIC PLASTIC BLOCKS Clear acrylic plastic blocks 20 mm thick all sides surfaces fully polished. The set comprises seven block packed in a velvet case....
Clear acrylic plastic blocks 18 mm thick with bottom surface finished in white, to show ray tracks and all other surfaces fully polished. The set corn prises a) Rectangle 75 x 50 mm b) Triangle 90° x 45° x 45° , 75 mm hyp. c) Triangle 60° x 60°...
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