Something is amiss here! Our High Performance Striping Machine may be adjusted to spray stripes that are 2-4 inches wide. There are wing-nuts on the side of the machine that are loosened to then raise or lower the spray can. The higher the can is, the wider the stripe will be. If these adjustments do not make any difference, then the spray can is oriented in the wrong direction, and should be rotated 90 degrees, as our striping can nozzles spray in a fan pattern.