4-WAY Stereo Audio Switcher 4CH Audio IR Remote Control Switch AV Audio Signal 4-in 1-out Audio Source Switching for CD Player

A40I Microscope Stand Foldable and Adjustable Angle Suitable for Wifi Digital Microscope Usb Electronic Magnifying Glass

High-definition high-magnification outdoor entertainment telescope, handheld microscope, monocular, wide-angle practical portabl

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0.01mm Microscope Slide Reticle Calibration Microscope Calibration Ruler Stage Micrometer For Ferramentas Accessory

185 Achromatic Objective Lens 4X 10X 20X 25X 40X 100X for Biological Teaching Microscope Lens

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Calibration Slide for Microscopes Featuring Optical Glass Construction and Defined 0.07mm and 0.15mm Reference Points

Multi-Well Concave Microscope Slides 3mm 5mm Thick Optical Glass Cavity Slides Polished or Frosted Surface Optional