Made from moulded glass, all faces highly polished. Suitable for
beginner’s study of basic laws of refraction by the pin-sighting
method.

  

    

    Code
    

    Length
    

    Breadth
    

    Thickness
  
  

    
01
    

    75 mm
    

    50 mm
    

    18 mm
  
  

    

    02
    

    100 mm
    

    60 mm
    

    18 mm
  
  

    

    03
    

    115 mm
    

    65 mm
    

    18 mm