Brain Fit - Brain Boosting Workout Cards Sale! from 1895 /per Qty. Sold Out This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Take time to challenge yourself with a variety of puzzles and thought-provoking conundrums with these brain-boosting workout cards. From Anagrams to Word Ladders, there are 15 ways to make your brain fit! Includes over 90 puzzles.