This is a simple playing card holder for people who have a difficult time holding their cards. I've seen similar designs on Amazon, but no similar designs that can hold more than three thick plastic playing cards. This can hold about 8 cards stacked in its slot. Also, there is plenty of room to hold many cards across. I admit, that this model can be done in wood or other material. However, I wanted to test my printer out and also create a part. This is the first part that I've drawn and perhaps the third thing I've ever printed. Since drawing this, I've printed 20 of these for my life-experienced friends (elderly). Also, notice that these can be stacked for easy storage.