Recommended Hook depends on thread brand
US 9 / 1.25 mm Knit-Cro-Sheen
US 9 / 1.25 mm Bates Fashion-Tone
US 9 / 1.25 mm Wondersheen
US 9 / 1.25 mm South Maid
US 9 / 1.25 mm Am. Thread Giant
US 10 / 1.15 mm Cebelia Size 10
US 10 / 1.15 mm Lily Sky-Tone

Gauge
Not given