Fineline Applicators-20 Gauge Dispensing Tip: 20/410 Cap. Fineline Needle Applicators are stainless steel applicators that use the FL air-tight non-clogging cap wire closure system to insure that the applicator and your preferred media are always ready for immediate use. This package contains three 20 gauge 1/2 inch dispensing tips with a 20/410 cap. Made in USA.