Diameter 55 cm
Double-pointed needles 3,5 mm
Yarn around 20 gramms (cotton crochet yarn 100g=650m)
Start with 11 stitches
Chart A have only odd rows
Chart B have odd and even rows because of row 44
Chart C is the same as chart B without even rows. Just remember on row 44 to knit six stitches out of double yarn over from previous row.