Using these sand saddle bags is a breeze. Simply unzip the bags and fill them with sand or other heavy materials. Once filled, zip them up securely and attach them to your backdrop stands to provide stability. When it comes to handling, be careful not to overfill the bags as it may exceed the 20 - lb weight capacity per pack. For maintenance, keep the bags dry. If they get dirty, you can gently wipe them with a damp cloth. Avoid using harsh chemicals as they may damage the Polyester Nylon material. Store the bags in a cool, dry place when not in use to extend their lifespan.