Ultra-soft hydrophilic foam protects and cushions wounds. Small pores decrease chance of tissue migration into foam dressing. Contains a polyurethane backing designed to help prevent leakage and dressing strike-through. Provides an ideal healing environment for a wide variety of wounds.- Foam Wound Dressing, 4" x 4", 10/bx, 5 bx/cs (Continental US Only) (Manufacturer Backorder - Inventory Limited when Available)