Microscope Cordless 400X, Now with coaxial focusing and upgraded LED illumination, innovation, quality, and student-proof features. The M3604C-3 is cordless and features mechanical stage, built-in camera port, and 4X, 10X, 40X achromat objectives
KidWind Dowel, Recommended for College, High School, and Middle School Science, Diameter: 0.25 in, Length: 5 in, used for designing and testing wind turbine blades, and they fit into the KidWind Wind Turbine Hub, D25