Heavy strong cotton canvas bag. Used 2-3 times, so it's clean.
It does have flaws: (1) minor scratches and (2) missing one side of brass closure, still closes though (3) one tiny whole in front of bag. See pictures for actual condition.
Measurement (flat): 21 1/2 " (longest, bottom) x 13" (middle)
Measurement can flex depending how the bag is packed in.
Will be folded in and shipped in a polybag.