LetterPen PUZZLE. The LetterPen PUZZLE is the NEW 2020 item! To create a personalized message the supplied letter rings can be plugged onto the barrel and make it something very special. As a gift for your best friend or for sharing ... One set consists of 2 pens with a rechargeable, fine writing, blue ink refill. With the included 62 letters sweet messages can be changed or exchanged again and again. Supplied on cardboard card with 2 ballpoint pens (blue refill) and 62 letter rings to plug on. Color: pink.