Brand new in the package. Set of 4 strings for Steinberger electric upright basses including the EU, CR, CRT, NXT & WAV basses. NSFW610 flatwound, light tension. Made by D'Addario for NS Design. These go for over $100 everywhere. Get them from me for $75 shipped anywhere in the USA. PM your email address and I will send a Paypal invoice.