So I bought one of those auto card shuffler where you split the deck in half and put half on one side, half on the other and hold the button down, mainly because I really don't know how to shuffle cards very well, and the usual way to shuffle them requires bending the cards and I'm worried about various decks being bent over time.

Now my main purpose of course, is not to use it for a regualr deck of cards, but for various board games like boss monster, Uno, etc. My question is, do these auto shufflers work with any size card? or do they ruin them? Do they only work on a deck of regualr playing cards?