Simple and functional holder for ID cards such as work ID cards or drivers licenses. The holder fits any credit card sized card (about 84mm x 54mm) and holds it in place. Both sides of the holder have large openings allowing the card to be seen when it is inside the holder. The holder includes a hole on the top where you can insert a key ring or a lanyard. I printed mine using ABS-GF and PETG-CF. Face the model on its bottom and use 5-10mm brim to ensure it stays in place during printing. I also used tree supports for the lanyard hole.