Acrylic Prisms 10 Set. A set of 10 acrylic blocks, each 25 mm thick, useful for optical experiments.• Equilateral triangle 75 mm sides• Equilateral triangle 57 mm sides• Isosceles 900 71 mm hypotenuse• Scalene 900 78 mm hypotenuse• Rectangle 75 mm 50 mm• Semi-circular 75 mm• Biconvex 75 mm• Biconcave 75 mm• Plano convex 75 mm• Plano concave 75 mm
