SUSAN BATES-Silvalume 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; which etches away all surface impurities. In addition; each hook is heat treated for strength and durability and polished for a velvety smooth finish. Each size is color coded so you can find the size you need at a glance and the US and metric sizes are clearly marked on the knob. These hooks have an extended shaft; which aids in working afghan and Tunisian stitches. This package contains one 10in hook. Available in a variety of sizes: each sold separately. Imported.