Robust! 5

The box is very solid and sturdy, but unfortunately also quite large and remarkably difficult. Even if you use only SD cards is better served with this inlay. The SD card can be swiveled so you can full maps highlight where they are inserts with the back upwards. This can be at first glance, and even in low light are different. In the field, I use the robust Gepe Card Safe Box but actually preferred, particularly because it better fits into the backpack divisions due to the smaller dimensions.