Using this chalk bag is easy. First, put some chalk into the bag. Then, attach the hip belt around your waist so you can have easy access to the chalk while climbing. When you need chalk, simply reach your hand into the large opening. To keep the chalk spreading well, you can gently shake the bag from time to time. As for maintenance, empty the bag of any remaining chalk after use. You can also wash the bag occasionally with mild soap and water, but make sure it's completely dry before adding new chalk. Be careful not to overfill the bag, as it might make it heavy and less convenient to carry.