You need to use
2 needles: US 2/ 2.75 mm (or other to obtain gauge).
tapestry needle.
Worsted weight (4 ply) yarn.
You need to know: knit, slip, make 7 from 1 (knit, purl, knit, purl, knit, purl, knit from 1 stitch)

Size 6, 7-8, 9-10 for women
size 10-11 for men.