Simple Machines Wedge Model Material_Aluminum this analog DC ammeter at

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Polypropylene round test tube rack holding 12 tubes — four at 25 mm and eight at 19 mm — with 360-degree access for benchtop chemistry demonstrations and student experiments

Wooden fulcrum-balance simple-machine model with a sliding pivot

Fourteen-orbital-shape model set with detailed illustrated instructions

Borosilicate glass equilibrium-tube apparatus with four connected shapes — straight

Simple Machines Wedge Model Material_Aluminum this analog DC ammeter atUsed to demonstrate how a wedge multiplies force during splitting, this wooden simple machine model lets students measure input effort against output splitting force at different wedge angles.