Grove Interchangeable Set- 13cm/5" TipsMade of polished Bamboo, the Lykke Grove needles are very smooth and light. All Lykke needles have both metric and US sizes etched on the needles to ensure long term readability. Set contains: 12 pairs of 13 cm 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, 8 mm, 9 mm, 10 mm, (US 3, 4, 5, 6, 7, 8, 9, 10, 10. 5, 11, 13, 15,) 5 cords: 2 cords for 60 cm 24" length, 2 cords for 80 cm 32" length, and 1 cord for