Folding Magnifier with 25mm Lens, 4x Lab Supplies_Stopwatches & Timers and metal-loop elastic cords for

and metal-loop elastic cords for hands-on study of compression

and extraocular detail for ophthalmology and sensory anatomy teaching

and zinc supports density and specific-heat work

holding twelve tubes up to 22 mm diameter for classroom and professional bench setups

Pith balls suspended both inside and outside a charged metal cylinder make visible proof that electrostatic charge resides only on the outer surface of a conductor

Folding Magnifier with 25mm Lens, 4x Lab Supplies_Stopwatches & Timers and metal-loop elastic cords forSingle lens folding housing magnifier with a 25mm lens delivering 4x magnification, lens tucking inward when closed to resist scratches during classroom, field, and desktop handling.