Using this tool box is a breeze. To open it, simply use the one-handed operation latch with your thumb or finger. It's designed so you can easily access your tools even when your other hand is holding something. When you're done, just close the lid firmly to engage the water seal. For maintenance, you can wipe the box with a damp cloth to remove dirt and dust. Avoid exposing the box to extreme heat or cold, as this could damage the water seal and the soft grip handle. Also, don't overload the box beyond its capacity to prevent any structural damage. With proper care, this tool box will serve you well for a long time.