Standard-Ground-Joint Stopcock, 24/29 Socket, 1000-2000mL, Borosilicate Glass Face Size_38mm and Steinheim — hand-painted for

and Steinheim — hand-painted for evolutionary anatomy instruction

sized for short-reach branching between adjacent components in a 4mm-socket student bench setup

25 inches diameter and 8

Seventeen-and-a-half-inch wooden simple-lever apparatus with an adjustable fulcrum on an 8

875 inch wooden storage box for tactile spatial-reasoning drills and solid-geometry exploration

Standard-Ground-Joint Stopcock, 24/29 Socket, 1000-2000mL, Borosilicate Glass Face Size_38mm and Steinheim — hand-painted forBorosilicate 3. 3 glass stopcock features standard 24 29 ground joints for secure vessel connections and precise flow control in laboratory applications.