... N: CWN2510Size: 2.0 x 4.0", 50mm x 100mm, square, prewiredBacking material: White non-woven clothPackage: 4pcs per re-sealable ... 08" female connector, patented design brings widest smooth & grip connection with male pins5. Durable integral structure: Highest integral intensity, allowing patients ... service, design & engineering assistance is available TENS unit electrode, 2" square with all-weather gel