500mm Connecting Lead with Crocodile Clips Both Ends, Red, 4mm Plug Pack Size_15 the drilled aluminum ball gives

the drilled aluminum ball gives a lightweight contrast to steel and brass balls of the same size in pendulum period and momentum-transfer demonstrations

5-inch stainless steel connecting rod

Natural gas Bunsen burner with an anti-tip cast iron base and adjustable air flow

mounted on a 5-inch stainless steel rod with nontoxic powder-coated zinc alloy

Three-source/five-load energy conversion board pairing hand-crank

500mm Connecting Lead with Crocodile Clips Both Ends, Red, 4mm Plug Pack Size_15 the drilled aluminum ball givesUsed as the positive rail partner to the 500mm black lead, this red insulated wire with crocodile clips at both ends keeps polarity color coded across longer student bench setups.