The Otis FG918100 is a pack of small caliber patches, purpose-built for .17 to .22 caliber rim-fire. Each patch, made from 100 percent cotton, offers optimal usability with up to 6 clean surfaces, lending it to repeated use.When coupled with the slotted tip, these patches transform into a rounded cleaning swab, ensuring thorough 360-degree cleaning coverage. This 2\" model is available in convenient packs of 100.