Knife Switch, Single Pole - Double Throw, Single Pole - Double Throwdurable Plastic Base Knife Switches That Stand Up During Tough Student Use. Poles & Knives Are Made Of Brass For Good Electrical Connections.
Rat, 2X Injected Vacuum Pack 1, preserved in Ward s One Solution, A safer alternative to standard formalin fixed specimens, From individual organs to whole organisms, unsurpassed tissue preservation with a safer experience for students
Grassfrog, 4-5in 2X Injected Vacuum Pack 10, preserved in Ward s One Solution, A safer alternative to standard formalin fixed specimens, From individual organs to whole organisms, unsurpassed tissue preservation with a safer experience for students
Double Convex Lens, Highly polished, optically true lens is excellent for physics classroom demonstrations in optics and light refraction, with ground edges, great for physics classrooms, with highest grade, Size: 100 mm focal length, Lens measures 2in diameter, 0.1 weight
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