Prisms, PK/20
A prism is a transparent block of glass or acrylic which is shaped like a triangle on each end. Prisms are ideal for experiments on the spectrum. This equilateral Prism is made of true optical glass. Each side I 27mm; the length is 75mm. Ages: 7+. The box includes 20 prisms and a pad of 25 tear-off informational sheets.
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Description
A prism is a transparent block of glass or acrylic which is shaped like a triangle on each end. Prisms are ideal for experiments on the spectrum. This equilateral Prism is made of true optical glass. Each side I 27mm; the length is 75mm. Ages: 7+. The box includes 20 prisms and a pad of 25 tear-off informational sheets.