The McKesson Xeroform Petrolatum Dressing, 5" x 9" (12.7 cm x 22.9 cm), contains 3% Bismuth Tribromophenate to provide bacteriostatic properties and help to reduce risk of infection and deodorize the wound. Primary dressing for wounds with light or no exudate. Helps maintain a moist wound healing environment to assist in autolytic debridement. Sterile Single Use Not Made With Natural Rubber Latex. Box of 50