La Bella OSF-5 Olinto Signature Flats; 5-String Set for Electric Bass; Tension: Standard; Flat Wound; Hex core improves intonation and prohibits string buzz; modified atmosphere packaging prevents tarnishing and ensures freshness; Winding material: Stainless Steel; Gauges: .047, .068, .080, .107, .125; Made in USA; note: only the Silk portion of the String should be cut or wrapped around the tuning post or else the winding will unravel