This are two different cases that can be used for muDuino shields: The more simple version (muDuino_Case) only protects the bottom of the shield from any damage or loose cables while the more advanced version (muDuino_Case_large) adds the option to mount several banana plugs to the side which enable a more simple connection to the pin headers of the shield. Both cases include two mounting holes to mount the muDuino in case it will be deployed in a stationary place.