Boye's Steel Crochet Hook Set is perfect for intricately detailed crochet work. Unlike typically hooks for yarn, these Steel Hooks are made from tempered, nickel-plated steel to prevent bending and rusting, which make them ideal for thinner materials such as thread or laceweight yarn. This Set offers superior control and durability and contains six Hooks, ranging from size US 0 (3.25mm) to US 10 (1.3mm) at approximately 5 inches (12.7 cm) in length.