I love polar style traps, but the flag system is terrible!
I have been making these mods for years, but now with my 3D printer I can make a professional version for sale.
It consists of an orange fiberglass mast, a white nylon coated spring, a classic red felt flag, some 3D printed parts and a small powerful magnet.
No more guessing where your traps are when you look out. No more getting them run over and no more having the snow stop your flag from going up.
Please have a look:https://m.ebay.com/itm/Polar-Ice-Fishing-Trap-Flag-Upgrade/142961035685?item=142961035685