From The Same Supplier Uncle Sam Uses
100% cotton, single-nap, unbleached flannel patches made to get guns clean efficiently. The coarse, open weave side grabs and holds bore fouling and doubles as a "scrubber" for tough surface dirt. Soft, napped side holds and distributes solvents and oils.
AR-15, Issue:11, Page:079
Big Book Catalog, Issue:72, Page:083
Big Book Catalog, Issue:72, Page:340
SPECS: 100% cotton flannel. 1000 patches per package.
.223 - 11/4" (3.2cm) square. .30 - 21/2" (6.4cm)