HeroNeo&reg; 20pcs knitting Needles Carbonize Bamboo Aluminum Crochet Hooks With Purple Bag 20 different sizes can meet your needs of knit Material: aluminum and bamboo Quantity:1set (20pcs) Size: bamboo handle metal needles (Length App 5"/13cm) 8pcs :1.0mm /1.25mm/1.5mm/1.75mm/2.0mm/2.25mm/2.5mm/2.75mm(0.04''-0.11"), bamboo needles (Length App 6"/15cm) 12pcs : 3.0mm /3.5mm/4.0mm/4.5mm/5.0mm/5.5mm/6.0mm/6.5mm/7.0mm/8.0mm/9.0mm/10.0mm(0.12"-0.39'')(approx)