30m Fiberglass Tape Measure with PVC Cover, Metric and Imperial LabLearner 5 inch premium dynamics carts

5 inch premium dynamics carts with nylon ball-bearing wheels and end hoops for elastic and inelastic collisions

and continuity tests

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

Cast iron five-piece stackable slotted mass set combining a 5 kg

sized to fill the gap between 100-ohm and 1k values for fine-grained voltage-divider investigations

30m Fiberglass Tape Measure with PVC Cover, Metric and Imperial LabLearner 5 inch premium dynamics cartsDual metric and imperial markings on this PVC coated fiberglass thirty meter tape measure, housed in a vinyl covered zinc steel case with a fold out winding handle for field work.