Features: brand new and high quality Electrical conductive gel, for TENS/EMS massager use. Conductive gel, water soluble high polymer. Good conductivity. No irritation, no sensitization, no cytotoxicity. Specification: Material: Gel, etc. Net weight: 15g Length: 9cm(3.54in) Color: As pictures shown. Shelf life: 3 years Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Conducting Gel(other accessories demo in the picture is not included.)