Scale 500-510 mm. tension ca. 15.3 kp. E1 - A2 steel plain. D3 - G4. Steel core wound with silver-plated copper wire. With loop. Prices for individual strings are for a single string. e1 0.24 mm = .010''. a2 0.32 mm = .012''. d 0.62 mm = .011''. g 0.88 mm = .035''.