Silvalume Double End Crochet Hooks. These hooks have the broadest size range within the Susan Bates family of hooks. Made of lightweight aluminum, each Silvalume hook undergoes a special anodizing process that etches away all surface impurities. In addition, each hook is heat treated for strength and durability and polished for a velvety smooth finish. These double ended hooks have an extended shaft, which aids in working special stitch techniques. This package contains one 10in hook. Available in a variety of sizes: each sold separately. Comes in a variety of colors. The color is chosen at random and cannot be selected.