The Blue Jay Elite Healthcare Brand Of Peel 'n' Stik Deluxe Multi-use Reusable 1 X 2 Oval Pack/4 Electrodes Are Of The Highest Quality Affordable Non-sterile Reusable And Self-adhering Coated With Long-lasting And Reliable Gel These Powerful Electrodes Are Excellent Conductors Of Electric Current Our Electrodes Are The Perfect Replacement Electrodes And Can Be Used With Most Tens Muscle Stims Ifc And Other Pain Relieving Devices They Are Fda Approved Can Be Applied To All Contours Of The Human Body And Can Be Reused Between 8-10 Times Each Pack Of Electrodes Comes With A Maintenance And Instruction Sheet Latex-free