Folding Magnifier with 25mm Lens, 4x Plastic Labware_Plastic Wash Bottles Stand-mounted force pump illustrating positive-displacement

Stand-mounted force pump illustrating positive-displacement fluid transfer against gravity

Offering four-decade rotary selection from 0 to 11

sized for field measurements and outdoor physics investigations

Pea seed germination model traces cotyledon splitting

Polished-wood board with three constantan wires (1/0

Folding Magnifier with 25mm Lens, 4x Plastic Labware_Plastic Wash Bottles Stand-mounted force pump illustrating positive-displacementSingle 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.