Includes: one (1) 2. 5 x 3. 5-Inches; 52 playing cards deck. FYI: adult-humor and vocabulary inside (AKA not kiddo friendly). A deck of playing cards that also defines 50 types of farts? That's right. This deck is beautifully designed, meticulously researched, and laugh-out-loud funny (and a totally legit card deck! ). In other words, it's the perfect gag gift for men or weird gift for your favorite weirdos. Kind of gives new meaning to the term "Royal Flush, " no? Know when to hold 'em - and when to Let 'em rip! Because cards are fun and farts are funny. (Duh. ) Knock Knock is an independent maker of clever gifts, books, and whatever else they can think up. Their mission is to bring humor, creativity, and smarts to everyday life. Put the fun in functional with #knockknockstuff.