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Two configurations Holds 91 flies in cut reference foam Foam/Seven rows, 13 slots Foam/8 compartment magnetic base Two configurations. Holds 91 flies in cut reference foam. Seven rows, 13 slots. Or 8 compartment with magnetic base. Store more flies in less space with our Super Slim Vest Fly Boxes. Flies not included. 5"L x 3⅞"W x ½"D.