Single Pulley with 2 Hooks, Heavy Duty Frame, 4.25 x 2" Manufacturer_Austerlitz sized for hands-on Ohm's-law measurement

sized for hands-on Ohm's-law measurement and series-parallel comparison without rewiring between values

Plug-type resistance box covering 1 ohm to 5000 ohms with 11

supplying replacements when the originals lose loft or split during repeated charging cycles

Color-coded spine and pelvis model differentiates cervical

EDM-80 moving-coil DC voltmeter with a clear acrylic front

Single Pulley with 2 Hooks, Heavy Duty Frame, 4.25 x 2" Manufacturer_Austerlitz sized for hands-on Ohm's-law measurementAluminum bodied single pulley in a heavy duty 4. 25 inch metal frame with hooks at both ends and a centered 2 inch wheel, configurable as fixed or movable in compound setups.