Click or scroll to zoom
Tap or pinch to zoom
The Thickness Gauge Tool is easy to use. Simply hold your card up to it starting at the top. If the card you are comparing is thicker than the black line on the tool, keep moving down until the card thickness matches one of the black lines. Once you know the thickness of your card, make sure to store it in the correct size protective case for safekeeping. This tool works best with collectable sports cards!