Rated 4 de
Not perfect, but the best available.I bought several hundred of these flags last year when laying out a shelter belt planting, and I have been mostly pleased with them. The 21" wire stem is much more useful out in the field than other flags with a 14" stem, and don't rust as badly as other flags when left out for extended periods of time. The fluorescent colours are easy to see in any light.
My only gripe is that the flags quickly grow brittle in sunlight and then break off in the wind, which is a shame considering the stems are so durable. Just be sure to apply some UV protectant before use and they'll last a long time.