Self Correcting Letter Puzzles - LCI2541 - This is what happens when 26 upper- and lower-case letters and 26 beautifully detailed illustrations meet their matches — an alphabet box filled with twenty-six wooden puzzles. Eye-catching colors and self-correcting puzzle pieces add to the pleasure of practicing this important skill. When it's time to clean up, this is the most fun game of " 52 Pick-Up" ever.