24 SWG Bare Copper Wire, 375ft Reel (0.56mm Dia) Capacity_125mL this 6-inch Alnico bar pair

this 6-inch Alnico bar pair extends field lines visibly along the magnet body for full-class iron-filing demonstrations

3g nickel-plated steel balls on a red wood base

restoring UV-C output in the compatible goggle sanitizer cabinet once the original lamp reaches end of service life

and control strips for a fuller genetic-taste-perception activity

Four-times enlarged premium ear model with five separable sections exposes detailed outer

24 SWG Bare Copper Wire, 375ft Reel (0.56mm Dia) Capacity_125mL this 6-inch Alnico bar pairFine gauge 24 SWG bare copper wire on a 250g reel approximating 375 feet, sized for solenoid and transformer windings that need many turns in a compact space.