Susan Bates Crystalites knitting needles are a translucent acrylic and come in a wonderful range of colors. They feature one color per size so there's no confusion as to which size you are grabbing. Not only are they beautiful but they work great with all your yarns.Details:Includes assorted colors10" lengthIncludes sizes 8, 9, 10 and 10.5 (5, 5.5, 6 and 6.5mm)Acrylic