Wild Water's Small Thin Fly Box is a great way to organize all your flies! This box measures 5 3/8 inches (Length) x 3 3/4 inches (Width) x 3/8 inches (Depth). This box is hinged on one side and folds open. This box has rigid pre-cut foam for easier hook insertion.  This box can hold over 100 flies. This small thin fly box with foam lining also has a water-tight seal to keep all your flies dry.