Red Molecular Model Atom, 2cm, 2 Holes at 90°, 10-Pack Material_Wood Compact all-metal boss head with

Compact all-metal boss head with two stainless steel thumb screws joins rods up to 15mm orthogonally

transmitting light end-to-end via total internal reflection to give a tabletop analogue of a fiber-optic cable

Diffusion and cell size kit investigates transport mechanisms through surface area to volume ratios

Screw-adjustable variable induction coil with enameled wire winding and 11

Red Molecular Model Atom, 2cm, 2 Holes at 90°, 10-Pack Material_Wood Compact all-metal boss head withBent two hole red atoms at a 90 degree angle in a 10 pack at 2cm diameter, conventional stand ins for oxygen centers in water and alcohol like structures.