GHS PRECISION FLATS - ELECTRIC GUITAR STRING SET SET: 800 Extra Light Pull: 011/014/022/028/036/046 TYPE: Flatwound MATERIAL: Stainless Steel GHS PRECISION FLATS: Flatwounds strings are made of highly magnetic stainless steel for high volume, then polished to get a smooth and velvety finish. PLAY WITH THE BEST GHS STRINGS is one of the best-selling string brands in the world. USA manufactured using the latest technology.