Hayfield Bonus Aran 400b ball Aran weight 80% acrykic 20% wool 5mm needles 840m/920y About This Yarn A classic aran yarn that is made extra soft with a 20% wool and 80% acrylic blend.Choose from a broad range of colours, including classic neutrals and bold brights. Bonus Aran with Wool is a machine washable and easy to care for yarn that is incredibly satisfying to knit with. What's it like to work with? In a giant 400g ball, you will only need a couple of balls for a sweater, eliminating all those pesky joins you normally have to deal with at the end of a project. A popular aran weight yarn that knits up beautifully. What is it best for? A standard aran weight yarn, that can be used this for all Sirdar and Hayfield aran patterns. Knit for all the family with this versatile yarn. Perfect for larger projects.