If you have any trouble with the wind blowing your flags over, I happened to find some nice sandbags to hold them in place. I just filled mine with kitty litter and they work perfectly.
Just thought I'd share a find. The good news is they only cost about $20
https://abccanopy.com/collections/weight-bag/products/super-heavy-duty-abccanopy-sandbag-saddlebag-design-4-weight-bags-for-photo-video-studio-stand-backyard-outdoor-patio-sports?_pos=1&_sid=ac5423619&_ss=r
Crusher
Just thought I'd share a find. The good news is they only cost about $20
https://abccanopy.com/collections/weight-bag/products/super-heavy-duty-abccanopy-sandbag-saddlebag-design-4-weight-bags-for-photo-video-studio-stand-backyard-outdoor-patio-sports?_pos=1&_sid=ac5423619&_ss=r
Crusher