Sirdar Yarn Composition: 70 % Acrylic 30% Nylon Tension: 22 stitches x 28 rows to 10 cm / 4 inches Ball Weight: 100g Yarn Weight: Double Knitting Yarn Length: 332 metres (362 yards) Knitting Needle Size: 4 mm (USA 6) Crochet Hook Size: 4 mm (USA G/6) Washing Instructions: 40 Machine Wash / Wool Cycle