Touch Proof 48" (1.2cm) Latex-Free replacement lead wires Works with most BioMedical Life Systems, Inc's products manufactured after 1999 Replacement lead wire for Impulse 2000, Impulse 3000, Impulse 3000T, BioMed 2000 XL, BioMed 2000 XT, Micro Plus, BioStim Plus, BioStim SD, BioStim M7, EMS 2000, BioStim NMS2, BioStim INF, INF Plus, Impulse TENS D5, Impulse EMS D7