This is a simple and elegant WiFi sign with a stand that you can use to share your WiFi hotspot SSID and password with your guests. Most iOS and Android devices should be able to interpret the QR code and will connect to the WiFi network without manual hotspot selection or manual password entry.
Note that your WiFi SSID and password are accessible to anyone who has the QR code. This is not a major security risk, but it is something you should be aware of.