Saga SPG-1 Studio Pro Acoustic Guitar Outfit (japan import) Manufacturer's part number:  SPG-1 Set contents: 30m length  diameter 1.0mm x, 10m length diameter 1.5mm x, 10m length diameter 2.5mm x, beads Material:  aluminum (99.7% purity) Surface treatment:  staining anodized There are uneven coloring  of some:  note