Comes with two "Attractor" System Foams on Foam Changer. Perfect to store large form pattern on long shank and large stone fly nymphs. Maximize the benefits of sufficient depth within fly case. By using with other System Foams sold separately, various customizations are available for your perfect set up. Model DimentionWxHxD) Weight SKU Large Attractor Fly Case 197x42x114(mm) - 7.76x1.65x4.49in 211g CF-3555+ Medium Attractor Fly Case 155x40x105(mm) - 6.1x1.57x4.13in 132g CF-2544+ Small Attractor Fly Case 130x36.5x104(mm) - 5.12x1.44x4.09in 106g CF-1533+