Sterile, disposable. Fits most electrosurgical units with 3/32" shaft sized handle. Box of 5 electrodes
ES22 1/4" Loop, electrode, 0.015" wire
ES24 3/8" Loop, electrode, 0.015" wire
ES23-8 5/16" Loop, Finer, stronger, 0.008 tungsten wire with less resistance so requires less power.