Type: Roundwound Material: 24K Gold Plated Gauges: 010/013/017/026/035/046 Developed and handcrafted in Germany from the best Materials and designed for the highest sonic demands. This series reflects the 75-year tradition in the String production. The result is a string in Premium quality that is second to none.All strings are with Genuine 24 carat gold coated and therefore completely insensitive against tarnishing or corrosion, their durability is up to three times higher than normal strings and are for nickel allergy sufferers suitable.