Spell out your befuddlement in the midst of any circumstance (while also channeling pent-up frustration) with the English-speaking world's most expressive acronym and the simple check of a box or two. It's the ultimate FYI. Never be at a loss for words again with the WTF Nifty Note from Knock Knock! Favorite office gift for coworkers, or funny notepad gifts for adults, and family members or friends. Includes: one (1) notepad 4 x 5.25 inches, 50 sheets each. Knock Knock is an independent maker of clever gifts, books, and whatever else we can think up. Our mission is to bring humor, creativity, and smarts to everyday life. Put the fun in functional with Knock Knock stuff.