100% silk

Needle: Japanese size 5-6 (3.6mm-3.9mm), similar to US size 4-6

Hook: Japanese size 4/0 = 2.5mm, between US B (2.25mm) and US C-2 (2.75mm)

Gauge: 24-25 stitches, 30-31 rows in 10cm of stockinette;
22 stitches, 10 rows in 10cm of single crochet