Bullet Points : 1 > 100Ml Conductive Gel For Use With Pain Doctor And Tens Machines 2 > Improves Conductivity For Best Stimulation And Results 3 > Can Be Used To Attach Electrodes When They Have Lost Their Self Adhesive Properties 4 > Duo Pack With A Great Price Description : Pain Doctor Conductive Gel 2X Paindoctor Improve Conductivity For Best Stimulation And Results Enhance Selfadhesive Properties To Be Used With Tens And Ems Electrodes New Size 100Ml, Blue