Double Long Pulley, 2" and 1.5" Wheels Material_Acrylic Set of eight steel tuning

Set of eight steel tuning forks tuned to scientific pitch (C4 = 256 Hz) for classroom work on sound waves

sized for classroom balance experiments and physics mass demonstrations

Glass tubing 6 mm bore

bridging picofarad and microfarad ranges for RC-time-constant and oscillator investigations

paired with a 13 mm curved enamel-coated steel blade for portable benchtop and laboratory measurement tasks

Double Long Pulley, 2" and 1.5" Wheels Material_Acrylic Set of eight steel tuningUnequal wheel pulley with a 2 inch and a 1. 5 inch wheel at 5. 75 inches overall in a metal frame with end hooks, showing how different wheel diameters change mechanical advantage.