legends card centering tool strategy game**Please remove protective paper on grader before use!** The card grading centering tool is essential for all collectors in the sports card trading hobby! You can determine whether the card is worthy of grading based on the centering and condition of the card. Our easy to use ratio scale will help you determine if you want to send in your card to PSA or BGS! Centering isn't the only factor that determines a grade, but it is one of the most important!