The Crochet Lite Crochet Hooks-Size K 6.5mm Manufacturer: Widget Products Sizes: C/2.5mm, D/3.0mm, E/3.5mm, F/4.0mm, F/4.0mm, H/5.0mm, I/5.5mm, J/6.0mm & K/6.5mm Color: See colors below Batteries included