13"x11" Antimicrobial Dignity Cover for catheter reservoirs. The breathable bag is made of porous, spunbound fibrous material that wicks out moisture allowing microbes to die naturally instead of thriving in a warm, moist environment as with typical, non-breathable, polyethylene bags. The catheter reservoir is easily emptied and replaced and the Velcro straps on the bag can be tightened or loosened as needed. Replace monthly. Color" Black, 5/package.