Using this 1.2L Multi-Functional Waterproof Bicycle Frame Bag is a breeze. First, decide where you want to mount it on your bike frame. You can choose to install it vertically or horizontally according to your preference. Cut the velcro fastening straps to the appropriate length to ensure a secure fit. Then, attach the bag firmly to the frame. When packing, put your tools, inner tubes, and other essentials inside. This bag will keep them safe from dirt and water. As for maintenance, simply wipe it clean with a damp cloth if it gets dirty. Avoid using sharp objects near the bag to prevent any damage. Also, make sure the velcro straps are in good condition. If they start to lose their stickiness, you might need to replace them. That's all you need to know to make the most of this great frame bag.