The Wendy With Wool Aran 400g is a versatile and durable yarn that is perfect for all your knitting and crocheting projects. With 20 shades to choose from, you'll find the perfect match for your next creation. The yarn weight is Aran, and the ball weight is 400g with a length of 800 meters, making it a great value for your money. The blend is 20% wool and 80% acrylic, which makes it soft, warm, and easy to care for. The recommended needle size is 3.75-4.5mm, and the tension is 19 stitches and 24 rows for a 10x10cm tension square.