Flat wrap stainless steel.
GHS Precision Flatwounds are made with highly magnetic stainless steel for high volume and are guitar strings that offer a velvety smooth finish.
The GHS strings you buy are as fresh as the day they were made. All GHS facilities are environmentally regulated to control temperatures and humidity. Sensitive raw materials and bulk products are further wrapped in protective bags for storage. Coiled strings are placed in string packets that, in independent laboratory tests, have proven to offer the optimum protection from humidity.