About this item Convenient and effective maintenance: This cleaning wool felt bullet is designed specifically for .177mm gun barrels, providing a convenient and effective way to keep your firearm in optimum condition. Gentle cleaning action: The soft and delicate texture of the wool felt ensures that it won’t scratch or damage the surface of your gun barrel while makes it hygienic and safe. Cleaning wool pellets usage method: No need to use auxiliary tools to push the wool pellets. Just put the wool pellets into the trajectory, pull the trigger, shoot the wool pellets out, and repeat a few times to clean the trajectory Long-lasting durability: Made from high-quality materials, this cleaning wool felt bullet is designed to withstand repeated use, ensuring its longevity and value for money. Versatile compatibility: Suitable for various firearms for .177mm caliber, such as air rifles, air pistols, and certain types of handguns, making it a versatile cleaning tool for multiple.