9.8" Polypropylene Stirring Rods with Rounded Ends, 7mm, 12-Pack Lab Equipment and Supplies and aluminum via four engraved

and aluminum via four engraved strips radiating from a heated 4

streaming kinematic data to a compatible handheld base unit for physics classroom investigations

delivering adjustable heating to 450°C with neon indicators for power-on and heat-on status monitoring

this double-convex converging lens gathers parallel light to a single focal point for bright image-formation demonstrations

and bottom-feeding larvae from aquatic substrates

9.8" Polypropylene Stirring Rods with Rounded Ends, 7mm, 12-Pack Lab Equipment and Supplies and aluminum via four engravedChemical resistant polypropylene stirring rods at 9. 8 inches, rounded at both ends and supplied as a 12 pack for routine solution stirring in biology and chemistry classes.