Tite-Fit roundwound nickel-plated electric guitar strings are designed to be great all-around strings. Based on a round core the construction techniques for the Tite-Fit electrics are very old. However the core wire and wrap wire in DRs are the latest most advanced and expensive metals available. Use Tite-Fit strings for flexibility tone and long life. These guitar strings are available in a wide range of gauges and sound great for rock blues heavy metal and jazz. Gauges 9.5-11.5-16-24-34-44.