Suitable for advanced beginners who know the basic stitches such as slip stitch, chain stitch, single crochet and double crochet.

You will need metal rings in the sizes:
3.5 centimeters (I used a Key ring)
1 x 8 centimeters
1 x 10 centimeters
1 x 12 centimeters
1 x 15 centimeters
1 x 18 centimeters
1 x 20 centimeters
1 x 25 centimeters
1 x 30 centimeters
1 x 55 centimeters