Weldmark by Metal Man Workgear copper plasma cutting electrodes are compatable with PC 45DV series plasma systems. They pair with compressed air, for use with Weldmark S45|Exprescut S45|Exprescut S45P hand plasma torch series, to cut electrically conductive metals. These heavy duty Industrial electrodes measure 0.25 x 0.25 x 0.75 in, and have a min-max rating range of 15-60 amps. Prop65 Warning: This product may contain materials known to cause cancer or reproductive harm. Made in Italy.