This is a spell slot tracker for Dungeons & Dragons (5e). It comes in a 3x1, 3x2, and 3x3 version, depending on how many spell slots you need to track. Level 20 wizard? Pick the 3x3. Level 2 Ranger? The 3x1 will be fine for a while.

Print the left and right end caps, 1, 2, or 3 shafts, and 3, 6, or 9 dials. A bit of glue is necessary to connect the end caps – be careful not to use too much, or squeeze out will ruin your build.

The dials only go up to 4, since the most spell slots one can have in 5th Edition is 4. If you want to track your hit points too, try out my Hit Point Tracker.