Premium quality 100 cotton flannel provides maximum absorbency and bore protectionThese patches are precision cut to ensure the proper fit and maximum cleaning performance when used in conjunction with our cleaning jags, These same quality 100 cotton patches are available bulkpackaged for high volume users such as competition shooters, gun clubs, law enforcement agencies, gunsmiths, and others, 214 0, 38 0, 45 Caliber and 41020 Gauge, 500 pack, SKU: TCLGR1284