SUSAN BATES-Silvalume Crochet Hook Set. These hooks have the broadest size range within the Susan Bates family of hooks. Our famous in line head helps reduce wrist motion for fatigue free crocheting and helps you maintain a more consistent gauge. The 7x3-1/2x1/4in vinyl case is perfect to store your hooks safely. This set includes sizes US F5; G6; H8; I9; J10 and K10.5 (3.75mm; 4mm; 5mm; 5.5mm; 6mm and 6.5mm).