This is a set of 18 diffferent sized needles: 2.0mm 2.25mm 2.5mm 2.75mm 3.0mm 3.25mm 3.5mm 3.75mm 4.0mm 4.5mm 5.0mm 5.5mm 6.0mm 6.5mm 7.0mm 8.0mm 9.0mm 10.0mm Bamboo needles have a completely different feel to metal needles - they are smoother and lighter - perfect if you are accused of disturbing others with the metallic clickety clack of your regular knitting needles!