Lang Yarns Neon knitting yarn, with neon colors, is a yarn composed of 67% polyester, 33% virgin wool and knits with knitting needles 7-8 mm (US 8-9 / UK 5-3) for a gauge of 12 stitches and 19 rows.
There are about 85 meters (92 yd) in a 50 gram (1.75 oz) ball so plan to knit:
550 g = 11 balls for men size M
400 g = 8 balls for women size M
300 g = 6 balls for children 10 yrs.
Machine wash at 30°C (86°F) with detergent for wool without softener.