2-Prong Single-Adjustable Universal Clamp with Boss Head, Large Lab Supplies_Stopwatches & Timers supporting both rheostat and potentiometer

supporting both rheostat and potentiometer use

Pairs 75 by 50mm with 18mm thickness on an acrylic rectangular refraction block

Two pith balls suspended on unspun silk from a brass pillar

this regulated low-voltage DC power pack outputs a fixed +12V through front-panel terminals on the benchtop

Three-bob pendulum stand mounting iron

2-Prong Single-Adjustable Universal Clamp with Boss Head, Large Lab Supplies_Stopwatches & Timers supporting both rheostat and potentiometerTwo prong single adjustable universal clamp with an integral bosshead and non slip vinyl sleeves, gripping burettes and flask necks from 12 to 45 mm on retort stand rods.