Lens Set with Supports, 42mm Diameter Biology_Microscopy providing the cleanest hand-operated way

providing the cleanest hand-operated way to make and break a circuit during early electricity instruction with stackable modules

Lamp-house assembly dimensioned as the matched replacement unit for optical bench and light-source apparatus when the original housing reaches end of life

producing water jets of varying distances to show how pressure increases with depth in hydrostatics

sized for elementary lessons on area

Lens Set with Supports, 42mm Diameter Biology_Microscopy providing the cleanest hand-operated wayLens set at 42mm diameter shipped with matching wooden supports, the fixed mounts steadying each lens for repeatable refraction and image formation experiments at student station scale.