Before I knew about how PSA, Beckett, and other grading companies measure centering; I used to use cheap plastic centering tools, calipers, and other inaccurate methods. Since my interview with a professional PSA's 45 55 centering rule explained with a Charizard card. Is your grading target accurate? #TradingCards #CardGrading #PSA #PokemonCards #Charizard #HobbyInvesting #Collectibles PSA BGS Grading Tool Card Centering & Grading Tool Works With PSA, BGS, SGC For Sports & Pokmon Cards (Clear PVC) Card Centering Tool Pokemon Amazon.com: BDJBXK Card Centering Grading Tool for Pokemon & Sports Cards Card Grading Centering Tool, Thickness Measurement Card, Professional Grading Kit (with Instructions) : Arts, Crafts & Sewing Top 50+ most expensive rare Pokmon cards of all time What do you use to measure centering? (Poll )