Convex Mirror, Material: Glass, round, designed for physics and educational uses, Because of their educational use design, there may be minor imperfections that do not affect physical function, thickness varies as they are not designed, Size: 2in Diameter, 300mm FocalLength, 2mm Thick
Deluxe Box Magnifier, Ideal for Observing Large Insects, Base size: 3 1/2in L x 3 1/2in W x 2 3/4in H, Lens diameter: 2 1/4in, View specimens up close, then set them free. The base of the 3X magnifier covers live specimens for hands-free observation, Clear plastic
Environmental Meter, 10-in-1, Measures Air Velocity, Air Flow, Air Temperature, Type K Temperature, Heat Index, Humidity, Wet Bulb, Dew Point, Windchill, & Light Level, Auto power off with disable, Tripod mount, Complete, wrist strap, Dimensions: 6x2.3x1in
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