Digimon Vital Bracelet users, this Evolution File is absolutely essential for keeping your DIM card collection organized and protected. The compact folder measures 15.3x11.3 cm - perfect for carrying in your bag or pocket while on the go. It holds up to 10 DIM cards securely, so you can bring multiple Digimon evolutionary lines with you wherever you travel. The included tracking sheets show evolution information for Digimon released up to volume 2, helping you optimize your training to get the specific Digivolutions you want. If you use the Vital Bracelet fitness tracker that measures your steps and heart rate to grow your Digimon, having multiple DIM cards handy lets you switch between different Digital Monsters easily. The folder protects your cards from scratches, bending, or getting lost - which is important since these cards introduce whole new evolutionary trees to your bracelet. The organization system makes it simple to find the specific Digimon line you want to train next. As you collect more DIM cards, having proper storage becomes crucial rather than just tossing them in a drawer. The evolution tracking sheets are super helpful for planning your training strategy to achieve specific Digivolutions. Seriously, if you're investing in multiple DIM cards to expand your Vital Bracelet experience, this affordable storage solution will keep your collection safe and organized while providing valuable game information. It's one of those accessories that seems simple but really enhances the overall Digimon training experience.