GEL, ULTRASOUND AQUASONIC 60GM(12/BX 12BX/CS) Acoustically correct for the broad range of frequencies used Completely aqueous, will not stain clothing or damage transducers Hypoallergenic, bacteriostatic, non-sensitizing and non-irritating Water Soluble No formaldehyde Not a spermicide 60 gram Doppler® size tube, 12 per box