Detail 01
25 sets
Provides a bulk supply rather than a single replacement set.
Product detailSKU #1500000396859
MartinAuthentic Lifespan 2.0 Treated Phosphor Bronze Acoustic Guitar Strings 25-Pack Medium (13-56)
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Independent shopping perspective
The Korena take
Martin’s 25-set bulk box keeps medium-gauge .013–.056 phosphor bronze acoustic strings together in one maintenance-ready supply. The Authentic Lifespan 2.0 treated sets are arranged in an easy-to-use bulk-box system designed for corrosion resistance, so the focus stays on having replacement sets organized when they are needed.
Strong match
Who this is for
- Keeping a larger supply of medium .013–.056 acoustic string sets available for ongoing guitar maintenance.
Consider the trade-offs
When to look elsewhere
- Players looking for light-gauge strings rather than the medium .013–.056 set.
What matters in use
The specifications, translated
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 02
Medium gauge (.013–.056)
Identifies the gauge range of the strings in this box.
Detail 03
Corrosion-resistant packaging system
The bulk-box system is designed with corrosion resistance in mind.
Final check
Know before you order
- 01Check that medium .013–.056 gauge is the string gauge you want.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How many string sets are in the box?
The bulk box contains 25 sets.
02What gauge are these strings?
They are medium gauge, .013–.056.
03What type of guitar strings are they?
They are phosphor bronze strings for acoustic guitar.
