Using the Kitty Case for your micro:bit is a breeze. First, just slide the case onto your micro:bit. It's flexible, so it won't be too hard to fit. The cutouts in the case are for the buttons, micro - USB, and JST connectors, so you can easily use all these parts of your micro:bit. If you want to use crocodile clips on the edge connector, you can see the labels through the white piece on the case. And if you need the whole edge connector, you can take out the white piece. When it comes to maintenance, since it's made of rubber, you can just wipe it with a soft, damp cloth if it gets dirty. Be careful not to use sharp objects on the case, as it might damage the rubber. Also, don't expose it to extremely high temperatures for a long time, as this could affect its flexibility and shape.