Naturale Interchangeable Set- 9cm/3.5" TipsMade of strong birch wood, the Lykke Naturale needles are very smooth and light. With their warm character and light coloured wood, the Naturale 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 contains: 9 pairs of 9 cm 3. 5" needle tips: 3. 25 mm, 3. 5 mm, 3. 75 mm, 4 mm, 4. 5 mm, 5 mm, 5. 5 mm, 6 mm, 6. 5 mm (US 3, 4, 5,