The fender 1250 ultracore guitar strings are built for electric guitarists who want reliable tuning defined tone and a familiar feel for everyday playing. At the centre of each string is fenders reinforced ultracore high carbon steel wire. This core is designed to hold pitch consistently even with heavy bends or longer playing sessions so you spend less time retuning. The hex core shape helps keep tension even across the set which supports accurate intonation and a balanced response from string to string.the nickel plated steel wrap wire adds clarity and warmth while keeping the feel smooth under your fingers. It also helps the strings last longer making them a practical choice for regular practice rehearsals and gigs. Finished with colour coated ball ends in classic fender colours fitting new strings is quicker and easier. This 1250r set uses .010 to .046 gauges offering a comfortable balance between flexibility and control.