[20 pack value set]: This large package consisting of 2 inch X 2inch 20 Tens electrodes can help you make full use of the Tens device or EMS. The sealing packaging can extend the service life of the Tens machine pad. [Ten unit electrode pads that can be reused]: The pad has excellent self -adhesive performance, which can be used up to 50 times, and it is easy to clean. The stimulus cushion that can be reused in the grade does not contain latex and is not irritating. [Universal compatibility]: Tens patch is compatible with all Tens unit muscle stimulators that use the 2mm pin connector wire. [Tips for use of electrode pad]: you can avoid the use of harmful chemicals and prescription medicines. Before using the electrodes for electrical stimulation, clean and dry the skin. [What you receive]: The TENS unit for the Tens unit is replaced, and the customer friendly service is available. Colour:Black Material:non-woven fabric Package Contents: 20 x TENS Unit Pads Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.