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.
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
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