Crochet hooks are perfect for making crochet dreads. They hold up batter than crochet/latch hook tools (which despite the similar name, are meant for installing crochet extensions and not actually making dreads) because they're one solid piece of stainless steel rather than a steel hook attached to a separate handle.
Size: Each package includes four hooks, all in different sizes. There's one each of 1.0mm, 1.5mm, 2.0mm, and 3.0mm. All four hooks measure 4.5" (11.5cm) from end to end.