22 cal Bore-whips feature one-piece construction, no metal components, pull-through cleaning and act as an empty chamber indicator. Washable and re-useable, Bore-whips(TM) provide a tight bore fit and are washable and reusable making them extremely effective and economical. About Bore-whips Works with most airguns 'Precision or Sporter'. Functions as an ECI One piece construction for easy pull-through use. No metal to scratch your firearm! Washable and reusable Washes like Bore-tips Made in the USA.