10cm Support Ring with Integrated Boss Head, up to 5/8" Rods Glassware_Glass Flasks Sliding-top wooden box 5 x

Sliding-top wooden box 5 x 2 x 1 inches with a recess sized for a pair of 100mm (4-inch) bar magnets plus their keeper

dissipating heat across the slide-bar carriage during sustained high-current circuit work in physics laboratory demonstrations

this EHT supply adds a center-tapped ±2

and liquid behavior

Open-top cylindrical dropping funnel in borosilicate glass holds 50mL with PTFE key stopcock for controlled liquid addition in chemistry procedures

10cm Support Ring with Integrated Boss Head, up to 5/8" Rods Glassware_Glass Flasks Sliding-top wooden box 5 xIntegrated boss head pairs with a 10 cm plated mild steel closed support ring, accepting vertical rods up to 5 8 inch to secure funnels and flasks above heat sources.