Lattice Support Clamps, 12.5mm Rods, 12-Pack Capacity_50mL Shows oxygenated and deoxygenated blood

Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input

Drops a dense object and a feather together inside a 20-inch evacuated glass tube

Beaker-themed beer pong set includes 12 polypropylene 500mL beakers and 2 pong balls for chemistry-themed party gameplay

an ignition light firing on compression for visual timing

liquid columns

Lattice Support Clamps, 12.5mm Rods, 12-Pack Capacity_50mL Shows oxygenated and deoxygenated bloodPack of 12 metal lattice support clamps fitting rods up to 12. 5 mm in diameter, tightened with an Allen wrench for constructing lattice frameworks on laboratory benches.