All of our puppies go through various trainings while they are with us. One of these trainings are using the litter box. They start at the age of 3-4 weeks old and learn very fast. This makes clean up easier and maintains their play areas clean and fresh. At around 6 weeks of age our poodle puppies start going outside to explore the grass and learn that outside is also a potty area like their litter box. We have been VERY pleased with how easy it is to train our puppies. Check our the picture of our litter of red and black moyen poodle puppies using their litter box and playing! We only use litter made from paper pellets which are safe for the pups.