12 Sizes Aluminum Crochet Hook Needles Set in Pouch Material: High quality of aluminum Needles are anti-resistance to keep longevity Size is permanently marked on needles Each hook is about 5.9 inch (15cm) long These sizes are in the set: 2.0 mm2.5mm 3.0mm3.5mm4.0mm 4.5m5.0mm 5.5mm 6.0mm 6.5mm 7.0mm 8.0mm