Knock Knock I Heart You Nifty Notes (12120) Simplify the romance-spreading process and give the object of your affection a memo that's tender, and touching, and, most importantly, easy 4 x 5.25-Inch pad, 50 sheets A completely non-creepy way to express affection For significant others, crushes, and friends alike; no rhyming couplets required Put the fun in functional with Knock Knock