CIVCO's reusable standoff pads come in two fixed depths and provide a compliant surface for adjusting the focal zone. The standoff pads are suitable for most ultrasound transducers for scanning superficial structures. A thin transparent membrane surrounds an acoustically correct gel substance, allowing you to clean and reuse the pad. The gel pads are easily cleaned with soap and water. The gel will not melt, freeze or dry out under normal use.