Material: 100% Polyacrylic Weight & Length: 400g - 1200m Gauge Swatch: 22 Sttches x 30 Rows = 10x10cm. Recommended Neddle Size: 3.5mm - 4.5mm Multi-Purpose Use – Ideal for Knitting & Crochet Oeko-Tex Standard 100 Certified - Tested for Harmful Substances