The Knitting Network are offering three balls of Stylecraft Head Over Heels All Stars, a 75% Wool 25% Nylon 4 Ply yarn with 400m per 100g ball, for £5. There are accompanying patterns available to download for free, Tiptoe Socks and Shawl in Stylecraft Head over Heels All Stars.
You can find all their sale yarns here.
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