BioWrap Electrotherapy Electrodes – Health Essentials - BoxAbout BioWave BioWrap Electrode Compression Wrap for Lower Back Pain Relief, S M (1 Unit) BioWraps deliver direct and deep therapy when severe pain strikes for up to 24 hours after one 30 minute treatment The wearable compression electrode garment pairs with BioWave's high frequency neurostimulator (sold separately) to go deep into tissue and block pain Helps relieve acute, chronic, and post operative pain on difficult to reach areas of the back Size