This is one of a kind self-striping sock yarn and will come to you in a gobstopper ball. The base is as follows:
 
Cottontail High Twist base:
85% Superwash Extrafine Merino 15% Nylon 
Yarn Weight: Sock/Fingering weight, 2 ply construction
394 yards per 100g hank
 
Suggested Needle/Hook Sizes and Gauge:
Needle Size: 2.5 - 4mm (US 1.5 - 6) needle and C-G Hook
Gauge (stocking stitch): 28sts x 36 rows over 10cm/4 inches on 3.25mm (US 3) needles

Care Instructions: Machine washable on a wool program ideally using a wool detergent in COLD water. Dry flat, do not sun dry or tumble dry. Avoid wringing and twisting.