Driftwood Long Interchangeable SetMade of strong birch wood, the Lykke Driftwood needles are very smooth and light. With their warm character, the Driftwood needles are easy on the hands and the eyes a true pleasure to work with. All Lykke needles have both metric and US sizes etched on the needles to ensure long term readability. Set includes: 9 pairs of needle tips: 4. 5 mm, 5 mm, 5. 5 mm (US 7, 8, 9) at 14 cm 5. 5" long; 6 mm, 6. 5 mm, 8 mm (US 10, 10. 5, 11) at 16. 5 cm 6. 5"