These two strings have been on my bass for one day. I have invoice dated July5th2005, so they're practically new. Gut with a thin nylon winding, not so different from the Kaplan Golden spiral model. I paid them $ 58 (G) + $ 88 (D) + $10 shipping = $ 156 I can let them go for us $ 100 plus shipping. Paypal preferred. Thanks.