Detail 01
Round core wire
The 255R uses a round core rather than the modern hexagonal type.

Independent shopping perspective
The Fender Classic Core 255R is a nickel-plated steel electric guitar string set with ball ends, round core wire, and regular .010–.046 gauges. Its construction moves away from a modern hexagonal core in favor of a round one, which Fender presents as ready-feeling immediately after fitting. Expect the series’ stated balance of expanded lows, gentler highs, and added flexibility when bending notes expressively.

Strong match
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The 255R uses a round core rather than the modern hexagonal type.
Detail 02
255R is the regular-gauge set, also identified as 10–46.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. Its gauges are .010, .013, .017, .026, .036, and .046.
They are nickel-plated steel strings.