Birchwood Casey Bore Sweeps feature expanding cotton tips that conform to barrel walls for effective cleaning and hold solvent without dripping or splattering. Flexible bamboo handles reach tight areas where patches and brushes fall short, and the biodegradable, disposable design is made from renewable materials. Sized for .38 and 9mm bores Expanding cotton tips conform to barrel walls Hold solvent without dripping or splattering Flexible bamboo handles reach tight areas Cleans where patches and brushes fall short Biodegradable and disposable Made from renewable materials 200 bore sweeps per pack