The Swift Instruments International M4000-D Compound Microscope is a high-quality microscope designed for precision and accuracy in various industrial, medical, and lab applications. With four objectives included, this microscope offers versatility and detail for a range of microscopy needs. Manufactured in Japan by the reputable brand Swift, this unit is reliable and well-crafted for reliable performance in a professional setting. The M4000-D model is a top choice for professionals seeking a dependable and efficient microscope for their work. This microscope was used regularly by my wife (a biologist) and is in perfect working order! We are only selling because her work bought her a new microscope.