These sand saddle bags are super easy to use. Just unzip the bags, fill them with sand or other heavy materials, and zip them back up. Then, attach them to your backdrop stands to keep them stable. When using these bags, make sure not to overfill them beyond the 20 lbs. weight capacity to avoid any damage. Also, be careful when handling the bags to prevent any spillage of the filling. To maintain these bags, keep them clean and dry. If they get dirty, you can gently wipe them with a damp cloth. Store them in a cool, dry place when not in use to prolong their lifespan.