Single Pulley with 2 Hooks, Heavy Duty Frame, 4.25 x 2" Subcategory_Energy Transfer Polystyrene electrolyzer with a transparent

Polystyrene electrolyzer with a transparent cone-shaped cup over a banana-socket base

sized to detect bidirectional currents stronger than the milliampere-class meters can read

with the (Cu) element stamp and a total 1

holding under at least 100 Newtons of separation force after hand-evacuation of the air between them

Single D-cell holder mounted on a base with 4mm sockets

Single Pulley with 2 Hooks, Heavy Duty Frame, 4.25 x 2" Subcategory_Energy Transfer Polystyrene electrolyzer with a transparentAluminum 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.