Complete with Two Motion Newton`s ring Microscope, set of Newton`s ring lens with mounting & adjustment arrangement. One Plano-convex lens and one optically true parallel glass plate are put together inside a brass cup with screw cap arrangement and is fitted with leveling screws. One glass plate with arrangement to incline is fitted on the same cup. Supplied with one lens fitted in metal frame and base with leveling screws to obtain parallel rays from the source.