Rain Bird FE10-25S drip irrigation 1 GPH flag dripper/emitter, 25-pack. From the Manufacturer: Low-flow Flag Dripper/Emitter with shutoff; ideal for supplemental watering of garden and landscape plants, shrubs and small to medium size containers. This is a non-pressure compensating dripper/emitter. Designed with large water passages to help prevent clogging; simple to flush for uninterrupted flow. Barbed ends for direct insertion into the side of 1/2" drip irrigation tubing, or use in-line with 1/4" tubing for positioning near individual plants. Simple to insert by hand or use the Rain Bird hole punch tool: HPUN1-1S (sold separately) for faster installation in larger projects. Convenient re-sealable bag contains 25 drippers; each black color-coded for easy identification. Rain Bird "The Intelligent Use of Water".