These things are great! Sturdy, reusable housing for rigs using multiple nymphs, dry dropper set ups, or a single fly on a leader, allowing for pre-rigging and quick changes on the water. These are identical size to common tippet spools, CARRY THEM RIGHT ON YOUR TIPPET DISPENSER. 3 per pak

NOTE: These work great with the LOON Tippet Stack (item GT016) or the FISHPOND Headgate Tippet Holder (GT012)