Kingfisher Large Lightweight Foam Fly Boxes - Will Float if Dropped Lightweight ripple foam fly box with strong magnetic closure EVA foam fly box, will float if dropped Ripple foam interior, soft touch, tough fabric covered exterior Waterproof with a secure latch, fits in a vest pocket, great for backpacking. Green, 5 3/4" x 3 3/4" x 1 1/4"