SUSAN BATES-Silvalume Single Point Knitting Needles. Silvalume needles have the broadest range within the Susan Bates family of knitting needles. Made of lightweight aluminum; each Silvalume needle undergoes a special anodizing process that etches away all surface impurities. In addition; each needle 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. The knobs feature a no roll design and the US and metric sizes are clearly printed on the knob. These 10in knitting needles are available in pair sizes US 0/2mm to US 15/10mm: each sold separately. Imported.