Unna Boot: Gauze bandage that has been evenly impregnated with a non-hardening paste of zinc oxide to provide venous ulcer compression therapy. Contains no gelatin. Non-raveling, thread-locked gauze helps prevent loose threads that can contaminate wounds. Provides venous ulcer compression therapy in actively ambulatory patients. Dries the oozing and weeping of poison ivy, poison oak, or poison sumac. Ideal for managing extremities with conditions such as venous ulcers that require protection and support. Features: 4" x 10 yds. (10.1 cm x 9.1 m) Gauze bandage that has been evenly impregnated with a non-hardening paste of zinc oxide to provide venous ulcer compression therapy. Stays moist to encourage healing. Contains no preservatives. Unique, easy-to-open, vacuum seal pouch. Non-Sterile Single Use