Dynarex Ultrasound Blue Gel is acoustically correct for a wide range of frequencies used in ultrasonic echo imaging systems * The Ultrasound Gel is bacteriostatic non-staining non-irritating non-greasy and fragrance free * Electroconductive gel media used to facilitate the ultrasonic pulsed echo imaging system * Aqueous will not stain clothing or damage transducers * Can be used with any equipment that requires an aqueous conductive gel (for external use only) * Fragrance free * Hypoallergenic bacteriostatic non-irritating * Non-greasy