Scientific Anglers Amplitude Bonefish Fly LinesFor bonefish on the flats The first series of lines to feature the revolutionary AST PLUS slickness additive, the Amplitude will shoot farther and last longer than any other line on the market. Its slickness down to a science. For precise deliveries to fish you'll swear have a sixth sense. Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability High contrast sighter to identify the back of the line