Pre-rig multi-nymph, dry dropper or multi-dry fly rigs. These rigging foams make life so much easier. Prepare your rigs at home so you can unfurl and change instantly on the water. The foams fit on most tippet holders. The fly goes in the groove, wind the leader around and snug the end into the removable plug on the side. Three in a packet so you will have all the rigs you need, tidy and ready to go instantly.