Manufacturer Silvalume Manufacturer part number B2120I GTIN 077216005570 Availability Susan Bates Silvalume Aluminum Double-End Crochet Hook 10"-Size I9/5.5mm I9/5.5MM -CROCHET HOOK DOUBLE Old price: $4.50 Price: $3.40 Qty: Add to cart Add to compare list Add to Wishes-N-Wants View Susan Bates Silvalume Afghan Crochet Hooks are 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 U.S. 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 a 10 inch double-end crochet hook. Size: I9/5.5mm. Available in a variety of sizes. Each sold separately. Imported.