Steel Ball Bearings, 13mm, 10-Pack Waves & Oscillation_Wave Motion supplying the imperial-length counterpart to

supplying the imperial-length counterpart to the 300mm metric lead for inch-scaled bench setups

Rectangular casted metal case and polythene insulated lid with finger flap to facilitate removal & front glass window

and cerebellum alongside the cerebral arterial supply for neuroanatomy and stroke-pathway teaching

sized for elementary lessons on area

Steel Ball Bearings, 13mm, 10-Pack Waves & Oscillation_Wave Motion supplying the imperial-length counterpart toTen pack of 13mm precision machined steel ball bearings for projectile launchers, roller coaster simulations, and Newton's second law apparatus in mechanics experiments.