Pattern is Japanese but fully charted using standard crochet symbols.

Yarn held doubled:
Color #1 - 2 balls (40g/179m)
Color #2 - 2 balls (40g/179m)

Japanese crochet hook: Japanese size 5/0 (3.0 mm)

Yarn details: Pierre Cardin Sylphide: Merino blend 25g approx 112m
Recommended Japanese Needle size 4-6;
Crochet hook 3/0 to 4/0