6.5cm Ring with Boss Head Clamp Included_Outlet Thermally isolated 150mL aluminum reservoir

Thermally isolated 150mL aluminum reservoir inside a polystyrene-lined jacket

offering a well-characterized expansion coefficient for comparative-metals work

Mid-size 3 x 1

this resistor module on a demonstration base with 4mm plug connections drops into series with bulbs and LEDs in student circuits

Solid glass friction rod that develops a positive electrostatic charge when rubbed with silk or wool

6.5cm Ring with Boss Head Clamp Included_Outlet Thermally isolated 150mL aluminum reservoirIntegrated bosshead joins a 6. 5 cm closed ring on this plated mild steel retort accessory, accepting vertical rods up to 5 8 inch for mid size ring stand assemblies.