D'Addario ECG25 XL Chromes Flatwound Electric Guitar strings, in gauges 12-52, Light. They have warm, mellow tones and a smooth silky feel, with almost no finger noise.
The 4 bottom strings are wound with a flat ribbon (rather than the usual round wire), which is then polished to make even smoother. Great for that classic jazz tone or rockabily twang. The thicknesses are 12, 16, 24w, 32, 42, 52.