I quote here Knitter's Pride: 

Bright, Zing Needles have a lively attitude. High-grade aluminum needles come in size-specific colors, with perfectly tapered smooth metal tips. Zing metal knitting needles are easy to handle and pleasant to the touch. These are ideal knitting needles for beginners and experienced knitters alike.

Zing double pointed needles come in 2 lengths and in color specific sizes. Clearly seen sizes are laser printed for long wear.

These needles are ideal for a variety of knit-in-the-round projects.

Zing double point needles are manufactured in superior grade lightweight aluminum that provides a smooth glide for all yarns. The points are flawlessly tapered and ideal for all yarns and every project.

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We brought in two sizes of double-pointed size 0 (2mm) needles: 8" and 6".  Each is a set of 5 in a lovely coral color.