
Just used this for the first time. It took about 5 days to fix them. I unwrapped them first and placed them under a large, heavy box of weights with a piece of cloth underneath to keep them from scratching. After a few days, I gently shaped the ends and gently twisted them the other way. I then folded them back up and left them loose in a 4x4 inch box. Now they're pretty flat. I laid one flat and attached the other to the MDF board to keep it level. I spilled water on them while taking pictures and they are definitely waterproof. Very glad I received them.

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