On our favorite rivers we (and lots of other anglers) have found that a two fly system is the most effective way to catch fish. Most of the time the second fly is small (size 18-26). We needed a tough box that can effectively manage lots of small and large patterns for those times when we aren't on our home water. The Big Cliff fly box is the answer. The durable foam strips securely hold the large patterns and small flies are help in place (even in big wind) on the magnetic base. We were happy that Team USA used this box as their competition box at the 2001 World Championships. Check one out for yourself. See why the Big Cliff fly box has been called the perfect "dry/dropper" box.