Table Clamp for Lab Rod, 2.5" Table Thickness Metal Labware_Clamps & Bossheads ground to polished beveled edges

ground to polished beveled edges and usable as a top-spinning base in secondary mechanics demonstrations

injection pump

Hand-driven Newton's color disc that spins seven painted segments fast enough to merge into apparent white through persistence-of-vision and additive color mixing

and 2 quadruple pulleys on a heavy composite base with capstan

Hand-painted 4-part human brain model separates into cortical hemispheres and brain-stem regions for lobed-anatomy teaching at introductory biology levels

Table Clamp for Lab Rod, 2.5" Table Thickness Metal Labware_Clamps & Bossheads ground to polished beveled edgesLaboratory table clamp mounting rods to benches up to 2. 5 inches thick, anchoring retort stands and apparatus to the edge of a classroom workbench.