Strings E1 and B2: NEW CRISTAL CORUM - made of an improved nylon, plain strings. Clear sound of a transparent NYLON. Large choice of sounds colours. Usual nylon gauges. String G3: ALLIANCE Fluoro carbon thinner string offers a clear sound all over the string. Authorise innity of nuances and colours and remain clear on the very high positions. G3rd assumes a perfect transition from B2 to A3. It makes the set very even. Bass Strings: A signicantly dierent strings: very fast and focused response. A new core made with a very dierent multilament raw material makes Cantiga bass strings an actual innovation. Outstanding specic caracteristics. Easy confortable safe playing.