Using the Quad Lock case for your iPhone 13 Pro Max is easy. First, just slide your phone into the case. To attach it to the mount, align the case with the mount and use the quick - attach dual - stage Lock. It doesn't require a lot of force, just the right technique. When you want to remove it, simply release the Lock. As for maintenance, you can clean the case with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials as they might damage the case. When not in use, store the case in a cool, dry place. And remember, even though the case can handle a lot of weight, don't subject it to unnecessary rough handling.