4-Metal Density Cubes Set with Hooks, 32mm, Lead-Free (Brass, Copper, Aluminum, Steel) Gifts_Home Molded black plastic replacement knob

Molded black plastic replacement knob sized for the goggle sanitizer cabinet timer switch

Body measures 2

letting students reroute a modular circuit between two branches without touching unmounted components

STOPPER & STOPCOCK || Fitted with an interchangeable 14/23 plastic stopper and PTFE key stopcock

Wide-mouth reagent bottle in heavy-duty borosilicate glass holds 1000mL with glass penny stopper for chemical storage and laboratory handling

4-Metal Density Cubes Set with Hooks, 32mm, Lead-Free (Brass, Copper, Aluminum, Steel) Gifts_Home Molded black plastic replacement knobLead free four metal 32mm density cube set with hooks in brass, copper, aluminum, and steel, offered as a safer alternative to the lead containing four cube series.