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. 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. Comes in a variety of colors. The color is chosen at random and cannot be selected.