Made of clear or frosted glass, clear or frosted acrylic
① Equilateral prism, Each side: 50mm,Length: 20mm
② Right angle prism, Hypotenuse:40mm, Height: 20mm, Length: 43mm
③ Equilateral prism, Each side:25mm,Length: 50mm
④ Equilateral prism, Each side:25mm,Length: 150mm