Misuyari Needles Kinu Nui Needles (for silk sewing) - 25 needles per pack, 5 packs Tsumugi Nui Needles (for tsumugi fabric sewing) - 25 needles per pack, 5 packs Total: 10 packs Grooved eye Sizes (approx.): Kinu Nui: Length: 28.8 mm Thickness: 0.51 mm Tsumugi Nui: Length: 31.8 mm Thickness: 0.56 mm These are stock items from a handicraft store. The packaging and contents are clean, but the storage period is unknown. Thank you for your understanding.