Flags intended for outdoor and decorative use have what are called "grommets" - little rings at the far top and bottom corners on the left of a flag. Typically a flag will clip onto the pole via these rings.
Unless otherwise stated, all our flags have metal grommets for log lasting wear.
Flags that are intended for ceremonial purposes will have a pole hem. This is an extra vertical sleeve at the left side where a pole slides in and supports the flag. They do not also have grommets.