This is a custom card guard for bicycle/tally ho and similar playing cards. If you use simplify 3d you can easy adjust it to fit any card case. Watch the entire process below ;) https://www.youtube.com/watch?v=5QwwC2_XA-c Printer: Rostock modified Rafts: Doesn't Matter Supports: No Resolution: 0.3 mm recommended but can go lower if you wish Infill: 10 - 20% or every layer 100% , it's up to you ;) Notes: This model was printed in ABS on 265 celsius for hotend and 110 for heatbed to make sure there would be no cracking in ABS. Make sure to print with a larger brim to avoid material curling on the bottom layer during print.