AmScope SW-3T24Z Trinocular Stereo Microscope, WH10x Eyepieces, 20X/40X/80X Magnification, 2X/4X Objective, Single-Arm Boom Stand, Includes 2.0x Barlow Lens 20x monocular stereo microscope with 20x up right image small size 2x objective and wf10x eyepiece