Nickel Plated cover wrap. Swedish Steel hex core. Round Wound. Long Scale. SIT's most popular and widely used bass strings. Nickel plated cover wrap over a steel hex core is good for all applications. Warm and punchy tone combined with great feel. Most sets available in long and extra long length. .050 .070 .085 .105 • MFSKU NR50105L • UPC 649687501044