Metal Dynamic Trolley, 2-Pack Lab Supplies_Stopwatches & Timers Wooden fulcrum-balance simple-machine model with

Wooden fulcrum-balance simple-machine model with a sliding pivot

the smallest in the bar-magnet series

Marriot-style Boyle's Law apparatus on a 250 by 175mm ABS plastic base with a 50mL gas syringe coupled to a pressure gauge for direct piston-and-gauge P-V data collection

Aluminum 1-inch diameter pendulum bob at 0

and momentum-collision setups where a mid-size projectile is needed

Metal Dynamic Trolley, 2-Pack Lab Supplies_Stopwatches & Timers Wooden fulcrum-balance simple-machine model withAll metal dynamic trolley pair with integrated spring plunger triggers, tape clamping screws, Velcro collision pads, and stacking pins for durable repeated use in dynamics experiments.