Single Pulley with 2 Hooks, Heavy Duty Frame, 4.25 x 2" Manufacturer_Austerlitz Variety pack to help with

Variety pack to help with experiment of contrasting resistances and temperature

supplying a contrasting reactive-metal electrode pair for Faraday's-laws and ionic-conduction work

rocker arms

4 inches with thread-fitted joints tuning pressure by screw

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

Single Pulley with 2 Hooks, Heavy Duty Frame, 4.25 x 2" Manufacturer_Austerlitz Variety pack to help withAluminum 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.