Actually working on an armor project but need a couple low vis (black) FAC roundels. I have found two potential sources but the producers have not replied to my query on the diameter of them. (I am leaning towads Antarki's set. They have a spiffy pather decal in the set.) I am looking for about 7-8 mm / .4 inch diameter. Anybody have any ideas on the size? And if anybody has a couple that they are willing to part with ???? Thanks in advance.