The back belt with TENS device is the perfect aid if you have pain in the lower back. It can be used flexibly and is suitable for everyone thanks to its extension strap. Features Perfect aid for lower back pain, fits all waist sizes (75-140cm) 4 wear-free contact electrodes made of conductive carbon No replacement electrodes required Snuggly, ergonomic shape Includes extension strap to make it larger 4 pre-programmed applications Removable operating element with LCD Adjustable intensity Safety switch off Medical Device