Demonstration Meter Included_Rod letting instructors tailor voltage to

letting instructors tailor voltage to light sources and experiment-specific requirements

gripping cylindrical items from 15 to 60 mm alongside an integrated boss head for retort rods

and organelles with hand-painted detail on a mounted base for biology teaching

and pendulum period in physics experiments

Larger 125-millimeter slotted screwdriver with a 4mm tip and durable plastic handle

Demonstration Meter Included_Rod letting instructors tailor voltage toPermanent magnet moving coil meter mounted in a transparent wooden box with all internal electrical connections visible, sized so students can see the moving coil mechanism while it reads.