Dynarex Ultrasound Clear 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 * Easy refill