Description:1 x 0.5X Microscope Auxiliary Objective Lens(Working Distance 160 mm)1 x 0.7X Microscope Auxiliary Objective Lens(Working Distance 120 mm)1 x 0.75X Microscope Auxiliary Objective Lens(Working Distance 117 mm)1 x 1.0X Microscope Auxiliary Objective Lens(Protection function)1 x 2.0X Microscope Auxiliary Objective Lens(Working Distance 40 mm)1 x 0.3X Microscope Auxiliary Objective Lens(Working Distance 287 mm)