Using the Pibow Zero W case is a breeze. First, take out all the layers of the case. Carefully place your Raspberry Pi Zero W inside the case, making sure the ports and GPIO line up with the cut - outs. Then stack the layers on top of each other until the Pi is securely enclosed. You don't need any tools to do this.
When it comes to mounting, you can easily attach the case to any surface because it's lightweight. Just find a suitable spot and put it there.
Some important notes: This case is only for the Raspberry Pi Zero W, so don't try to use it with the Pi Zero v1.2/1.3. Also, remember that the Raspberry Pi Zero W itself is not included in the package.
For maintenance, since the case is made of cast acrylic, you can clean it with a soft, dry cloth. Avoid using harsh chemicals as they might damage the acrylic. Keep it away from sharp objects to prevent scratches. With proper use and care, your Pibow Zero W case will protect your Raspberry Pi Zero W for a long time.