Freedom Cath External Condom Catheters, by Mentor, are designed to be a comfortable, self adhering external catheter that are easy to use. The freedom cath catheters come in four different color coded sizes for convenience. To apply these External Catheters simply roll one on. The catheter has a self adhering surface, so no awkward tape or messy adhesives are necessary. Unlike some other Self Adhering Catheters, these External Catheters create a water tight seal and a unique bulb shape to help control overflow, preventing leaks from overfill. Freedom Cath External Condom Catheter Features and Benefits: Stays in Place Without Unnecessary Restriction. Watertight Seal. Soft, Stretchable Material. Kink-Resistant Nozzle.