Using this chalk bag is super easy. Just put your chalk inside the bag. You can hang it on your waist with the included belt, which makes it convenient to reach for chalk while climbing. As for the toothbrush holder, you can use it to store a small toothbrush or other small items. When it comes to maintenance, keep it away from sharp objects to avoid tears. If it gets dirty, you can gently wash it with mild soap and water, and then let it air - dry. Always check the availability of your favorite color before purchasing.