For rigging when you&';re at home so you can fish while you&';re on the waterSturdy, reusable housing for rigs using multiple nymphs, dry dropper set ups, or a single dry on a leader, allowing for pre-rigging and quick changes on the water. -3 pack-Stores rigged flies and tippet-Allows for quick fly changes-Minimizes waste-Identical size to common tippet spools