Glad activated carbon training pads are made with 5 layers of strength for leak-proof protection. The activated carbon layer absorbs odor and yellow spots while the polymer layer absorbs and locks in liquid while turning it into a gel. These dog pee pads can hold up to 3 cups of liquid and are perfect for potty training puppies and dogs, and for senior dogs that need extra assistance while inside. They're also effective as a crate liner or dog bed liner and are easy to clean up and throw away once they have been soiled. Get your glad activated training pads and see how easy cleanup can be!