ECG Gel is a conductive material that allows for strong contact between the skin and electrodes, allowing the electric pulse to travel straight through to the tissues below. It is micro bubble free, not irritant, bacteriostatic, alcohol free, non-greasy, water soluble, salt free, does not stain, and odorless. This is made from the best quality materials and hence is preferred by an array of professionals. ECG Gel is a multipurpose gel with excellent conductive properties specially formulated to provide clear and consistent ultrasound transmission throughout a broad range of frequencies.