The football drive marker, or drive start indicator is a piece of equipment used mainly at the professional levels of the sport. The drive marker's purpose is to keep track of where the offensive drive began each time a team gains possession of the ball. In football, a drive is a play or series of plays in which the offense has control of the ball that ends in either a turnover, the offense scoring, or the clock expiring. The drive marker is mainly used for statistical purposes so that teams can analyze the distance of their drives.
The drive marker is a simple piece of equipment and looks like a stick put into the ground, with an arrow to point out which team has possession. The placement and movement of the drive marker is operated by the NFL chain crew, which is a crew of referees present at every game and control all signal poles and equipment on the sideline.