Pro-Shot MP22 Bore Mop .22 Cal Cotton Swab These bore mops are 100% cotton with a brass core. They are made of the highest quality construction possible. Mops can be used for quick-cleaning and are especially excellent when using oil for bore lubrication because they create foaming action that helps in the lubrication process. Type: Cotton Swab Size: .22 cal Quantity: 1 Bristle Type: Cotton Length: 1.75" Material: Cotton Thread Pattern: 8-32 Protects: Against Rust Powder Residue, Fingerprints Suitable For: Firearms Eco-Friendly: Yes