I had been trying out a lot of brands of strings , trying find the perfect strings for my warwick thumb bass. When i put these on , everything instantly felt right. The sound , the feel, the tension , everything was perfect. They stay longer how they came out of the packaging compared to other brands , even after quite a lot of use , they still produce the warm classic roundwound nickel sound. i couldn't recomend these strings enough, at least I have not experienced a better string than these .