Japanese version available here. Both English and Japanese versions are fully charted using standard knitting and/or crochet symbols.

version A:

• Japanese size 7/0 crochet hook (4.0mm)
• 25g (67.5m) color 21
• 25g (67.5m) color 24
• bottom part of square plastic 2-liter bottle

version B:

• Japanese size 7/0 crochet hook (4.0mm)
• 20g (54m) color 27
• 5g (13.5m) color 21
• 5g (13.5m) color 24
• bottom part of round plastic 2-liter bottle

No gauge is given in the pattern.