Sorbalgon Calcium Alginate Dressing. Designed to quickly absorb wound exudate, this dressing is highly absorbent and forms a gel as wound exudate is absorbed. Biodegradable and made from natural materials, the dressing holds together wet or dry for easy and intact removal. Sterile, this dressing can remain in place for up to 7 days. Ideal for treating chronic or acute moderate to heavily draining wounds. Size: 2" x 2". 10/box.