Equilateral Acrylic Prisms (1"/25mm sides), Set of 3 Prisms - 1" (25mm), 2" (50mm), 4" (100mm) Lengths
EISCO Equilateral Acrylic Prisms, Set of 3 - 25, 50, 100mm Lengths(3) PrismsThis set is of highly polished acrylic equilateral prisms -- 25mm sides and lengths of 25, 50 and 100mm.