TWIN SOXX by LANG YARNS, for matching self-striping socks, now in 8-ply!
150g ball of worsted wool/nylon sock yarn (320m) with two identical colour repeats in the one ball.
You begin the first sock with the yarn from the inside of the ball. After about 200m you will find a length of unprinted yarn - cut this away - then the colour repeat begins again so you can knit the second sock to match the first.

Fibre content: 75% new wool (superwash), 25% nylon
Ball size: 150g = 320 m
Needle size: 4–4.5mm
Tension: 19 sts x 26 rows = 10 x 10 cm (4")
Care: machine washable at 40 degrees