Hydrofera Blue 2"x2" Bacteriostatic Foam Wound Dressing is a sterile absorptive foam dressing made of Hydrofera Bacteriostatic (PVA) polyvinyl alcohol sponge. Hydrofera Blue is a simple, safe, effective and proven moist wound dressing used as an external dressing for management of wounds such as pressure ulcers, venous stasis ulcers, arterial ulcers, diabetic ulcers, donor sites, abrasions, lacerations, radiation burns, post-surgical incisions, and other external wounds. Must be hydrated with sterile saline or sterile water and with excess squeeze out before use.