Made from clear acrylic sheet, this set contains six prisms in a variety of shapes. All sides are polished and the prisms all come in a protective wooden box with foam insert. It includes one rectangular block (3″ x 2″ x 1/2″), one semi-circle (3 1/2″ base x 1/2″ thick), one equilateral prism (3″ sides, 1/2″ thick), one double convex lens (3 1/2″ long, 1″ at center), two double concave lenses (3 1/2″ long, 3/8″ at center), and an activity guide.
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