Low-Friction Double-Tandem Plastic Pulley, 38 and 50mm Diameter Subcategory_Force and Motion and sterilization without corroding under

and sterilization without corroding under common laboratory reagents

producing oxygen's characteristic emission lines for spectroscope viewing of atomic-emission and quantum-energy levels

5 mm in diameter

Cubic 16 by 16 by 16 cm footprint defines this autoclavable polypropylene test tube basket

adjustable from 0 to 45 degrees with an alignable pulley and included pan and roller

Low-Friction Double-Tandem Plastic Pulley, 38 and 50mm Diameter Subcategory_Force and Motion and sterilization without corroding underTandem double plastic pulley pairing 38mm and 50mm low friction wheels on an open sided steel frame, eliminating cord threading during setup in compound pulley experiments.