Crochet chain necklace is made with black and white cotton thread. Each big circle is crocheted separately and connected with smaller ones. It can be done in many colors. This circles necklace will give you a modern, trendy look. Skill level - Beginner, Easy Materials: -Steel hook 1.6mm (Bates 6) -About 50g. (1.76 oz) cotton thread size 10 -Tapestry needle You will need to know how to: 1. Crochet Stitches used: ch - chain stitch sc - single crochet GAUGE 9 sc make 1 inch; 9 rows make 1 inch. Gauge is not that important.