Puzzle Pen™ refills get you writing (or guessing) puzzle solutions with confidence. Puzzle Pen™ is erasable, so it leaves room for error! Specially designed for crossword, word search and Sudoku lovers, Puzzle Pen™ features smooth-writing, blue gel ink that’s completely erasable! Includes retractable tip, eraser top and pocket clip. 5 1/4" long. Refill includes 1 ink/eraser.