noun
A needle used for knitting, typically long and pointed at one or both ends.
編み針でマフラーを編んでいます。
I am knitting a scarf with knitting needles.
かぎ針 is a crochet hook, which has a hooked end, while 編み針 is a straight knitting needle.
Compound of 編み (ami, 'knitting', from 編む 'to knit') and 針 (hari, 'needle'). The reading あみばり is a straightforward combination.