Automatic : Spring device, can automatically when touches the cover glass during observation to the lens from crushing the specimen
Brass Material: Made for brass material, fine workmanship, and fall prevention, exquisite and , chrome plated accuracy material for the shell
Clearer: This lens is coated with high light transmittance, with high refractive index, and the image is brighter
Basic Specifications: This lens has a magnification of 20X, common rail distance of 195mm, and parfocal distance of 45mm
Wide Application: The screw interface size is the international standard RMS size, which can be used by most professional biological microscopes on the market