These cards are exclusively made for the Digimon Vital Bracelet! By inserting it into the bracelet, you can add areas, missions, and Digimon.
The Agumon Dim Card contains the evolution route centered on Agumon and the Gabumon Dim Card contains the evolution route centered on Gabumon.
Note: Once you use a Dim Card on a Vital Bracelet, that particular Dim card is locked to that device, so you cannot use it on another device.