[Useful Tips] We recommend you to clean and dry the skin thoroughly before each application of the electrodes for electrical stimulation. Please note that the electrodes do not stick well if any lotion, oil, make up are present on the skin and they are not suitable for places with wounds. Also, please make sure that they are stored in a cool and dry place. [Reusable & Durable] Our low impedance solid electrode gel is made by upgraded industry Tier-1 adhesive, which can provide excellent self-adhesive performance and easy clean up, they are reusable more than 100 times, Further, the re-sealable packaging helps to keep the durability and lifespan of the pads. [Trusted Quality] Medical electrode pads passed the FAD, CE, ROHS certificate and the skin test, latex-free and non-irritating, highly ensured for optimal safety and further protects you from harmful additives and consumption of prescription medication, which is let you and your family can use it with confidence. [Universal Compatibility] The standard 2mm pin connector of electrode pads fits most of the TENS units, It is compatible with the popular TENS / EMS unit such as AUVON Rechargeable TENS unit, United Surgical TENS 7000, HeathmateForever YK15AB, NueMedic TENS machine.which can be used by housewives, senior citizens, office workers or be it gym goers for that stimulating experience. This TENS unit pads set is also an ideal gift for your family and friends. [Different Set] Our package includes 20 pieces of 2 x 2 inch, 8 pieces of 2 x 4 inch pads and 2 pieces of 4 x 4 inch pads, Unlike other sets, we added a pair of 4'' x 4" extra-large tens pads for a large muscle group massage, So I think you should try our 4 * 4 inch pads, this will be a new experience, and I believe you will love this feeling.Best Sellers Rank: See Top 100 in Industrial & Scientific. : B0B4677NVV. Manufacturer: AmzWorld. Date First Available: June 15, 2022. Product Dimensions: 4 x 4 x 0.75 inches; 9.14 Ounces.