Any store should have knitting needles.
knitting needles
20mm knitting needles are needles that are 20mm in diameter. They are also known as US size 35 needles.
Why?
knitting needles
nooooooo!
Knitting needles.
no.
Yes.
Practically, a loom is used for weaving. Knitting is accomplished on a knitting machine or completed by hand using knitting needles.
They are called circular needles and they are used in exactly the same way as straight needles.
Knitting always requires two needles. Crafting fabric with one instrument, generally means crocheting.
I'm not sure what bpn's are. But dpn means "double pointed needles."