This is an aid to keep your Playing Cards in place if you are struggling with it a little bit. I made it for my daughter, but it's also perfect for Seniors or disabled Persons.

I recommend to print these two parts separately, because you would get better results with different Print Settings.

For the Clip, I just added more Perimeters and zero Infill.

The Flaps look even better if you set the Layerhighths to 0.10mm.