Gun-tips are a strong and durable replacement for cotton swabs that do not leave lint and fibers behind. They are flexible enough to round corners"" but strong enough to resist breaking. Gun-tips are also washable and reusable. The 3"" Mini Tip swabs are especially effective for triggers and frames"" slide rails"" barrel lug recesses"" barrel links"" trigger assemblies"" compensators"" barrel extension"" bolt cams"" extractor ports and other hard-to-reach areas. Also great for applying lubrication or grease.