BOBBEL Special Editions, Colour Gradient Yarn 267 g, 4-Ply 1000 m for Knitting and Crocheting (Summer Rainbow - 200) : Amazon.co.uk: Home & Kitchen
Wunderkiste Colour Gradient Yarn, 3-Ply 2,000 m, (8 x 250 m) 400 g, Bob Colour Gradient Yarn for Knitting and Crocheting (WU0138) : Amazon.co.uk: Home & Kitchen
Colour Gradient Yarn Bobbel Wool Choice of Sizes Knitting Wool Crochet (Black & White - Black Outside, 200 g/1000 m - 3 Pieces) : Amazon.co.uk: Home & Kitchen
Easy tips for working with gradient yarn cakes for beginners