D'Addario Nyltech Ukulele Strings utilize a proprietary formulation that produces the optimal combination of warm yet punchy tone, emulating the tonal characteristics of natural gut strings. DETAILS: Coating: Uncoated Tuning: Standard End Type: Tie-End Number Of Strings: 4 Loop end construction for universal fit Each Custom Extruded Nylon set is manufactured on D’Addario’s own advanced monofilament extrusion line built exclusively for the production of musical instrument strings. Each set features our exclusive laser sorted Pro-Arté clear nylon trebles for unsurpassed intonation with a warm, projecting acoustic tone. Set Type: Sets Monofilament Material: Nyltech *Note: Actual product image details / colours may vary slightly from the image you see on your screen.