2-Prong Single-Adjustable Universal Clamp with Boss Head, Large Lab Supplies_Stopwatches & Timers with a slide-bar carriage carrying

with a slide-bar carriage carrying a phosphor-bronze contact and three binding posts

universal 50 x 50mm slide holders

supporting both rheostat and potentiometer use

providing the high-turns winding for transformer ratio and electromagnetic induction demonstrations

Four-socket E10 lamp holder pre-wired in series on a hard-plastic base with two 4mm banana terminals

2-Prong Single-Adjustable Universal Clamp with Boss Head, Large Lab Supplies_Stopwatches & Timers with a slide-bar carriage carryingTwo 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.