FlexStake makes five markers that are particularly well suited for airport use. Because of their ability to withstand multiple traffic hits at up to 80 mph, the FlexStake HD, SM, and TM are used on runways and taxi strips. At speeds up to 80mph, these posts can be run over by a plane without damage to landing gear or post.

Since then, we have become the world standard for impact resistant signs and markers of all kinds.