What are the dimensions of a pylon used in football?

The pylon used in football serves an essential purpose in marking the corners of the end zones. The standard dimensions for pylons, as established by NFHS Football Rules, are 4 inches by 4 inches in cross-section and a height of 18 inches. This size ensures they are easily visible while remaining sturdy enough to withstand contact during plays.

Other dimensions mentioned in the options do not conform to the standardized guidelines. Options with a height of 12 inches or a cross-section of 6 inches by 6 inches do not meet the specifications required for official game play. Therefore, the selected answer reflects the correct dimensions for pylons used in football games according to NFHS rules.