Texture on full length of strings.The strings have a light to medium-soft texture that has been "spiral cut" into the string. This slight texture facilitates better gripping of the strings for lightning fast pizzicato playing, and drag triplets with with almost no effort. The strings "grab" the air and force it to move, producing more mid and low end tone when playing acoustically.All of our nylon string sets come as a 6 string "bump" assortment (6 total strings of various gauge. See photos.) for 1/2, 3/4, and 4/4 size double bass. The idea is that some players prefer thinner, lower tension strings while others prefer thicker, higher tension stings. Why not offer a wide array of thickness and tension all in one package of strings? This is exactly what we do!Our string sets also include rubber dipped metal ends. NO KNOTS to come untied in the middle of your set! We are proud to be the only company offering this configuration.You need strings that sound great when played acoustic or amplified, strings that won"t tear your fingers up if you need to play 3 sets in one night, strings that stay in tune in hot/cold/humid/dry climates. You need Superior Bassworks Kevlar cored nylon strings for double bass.Perfect for Rockabilly, Psychobilly, Bluegrass, Country/Western,and much much more!