Tite-Fit roundwound nickel-plated electric guitar strings are designed to be a great all-around string available in a wide range of gauges. Based on a round core, the construction techniques for the Tite-Fit electrics are very old. However, the core wire and wrap wire in DR"s are the latest, most advanced and expensive metals available. Use Tite-Fit strings for flexibility, tone, and long life. These guitar strings sound great for rock, blues, heavy metal, and jazz. Gauges 13-17-26-36-46-56.Gauges 13-17-26-36-46-56 Roundwound nickel-plated strings Round core wrapped with advanced metals Great for all styles