5m Fiberglass Tape Measure with PVC Cover and Winding Handle Capacity_17mL and gas control on natural

and gas control on natural gas for high-temperature chemistry heating applications

Low-voltage DC motor with a current-limiting series resistor on a demonstration base with 4mm plug connections

Demonstrates Newton's first law by yanking a metal card from beneath a steel ball

Hand-cranked friction-wheel drive sandwiched between clear acrylic plates

5m Fiberglass Tape Measure with PVC Cover and Winding Handle Capacity_17mL and gas control on naturalNon conductive, waterproof, and washable, this PVC coated fiberglass five meter tape measure is housed in a zinc coated steel case with a flush winding handle for field measurement.