These TENS and EMS Machines Electrode Leads and Wires will fit only NeuroTrac Machines. They are designed to fit all Neurotrac Machines shown below: NeuroTrac® PelviTone NeuroTrac® Sports NeuroTrac® TENS NeuroTrac® Sports XL NeuroTrac® Simplex NeuroTrac® Rehab NeuroTrac® Obstetric TENS NeuroTrac® MyoPlus NeuroTrac® Continence NeuroTrac® MyoPlus2 NeuroTrac® MultiTENS   The picture shown is showing 1 lead (The white end fits into the machine, and the black and red attach to your electrodes). They are sold in pairs, so you will receive 2 leads.