Aquaflex Ultrasound Gel Standoff Pad Clear is aqueous, flexible, disposable ultrasound standoff for use in difficult to visualize and near field areas. Requires only gentle, even pressure to yield better visualization of near field and superficial structures. The Aquaflex Ultrasound gel is Disposable, hypoallergenic, and bacteriostatic. They are 2 cm x 9cm and comes 6 to a box.