Is there a full set of 6 strings in each pack and long enough for full size guitar?

See the product information, this will answer your query: http://www.amazon.co.uk/Martin-M170-Acoustic-Guitar-Strings/dp/B0002CZST4/ref=cm_cd_al_qh_dp_t

are they nylons or steels?

Hi there. They are steel core with a bronze wound cover on 3rd (g) to 6th string, I think, if they follow same pattern as the light ones I buy (red packet), or just possibly 4th (d) to 6th string. A wound 3rd is preferable for fine tuning but not so good for bending. Martin strings are an excellent product, especially at the price quoted. PWN

What's the difference between cutom light, extra light, light and medium? I'm not sure which one to choose...

Strings are also measured in gauges so 10 11 12or 13 so extra light is 10 custom light is 11 light is 12 and medium is 13 ... But if your a beginner or not playin long I would suggest 11 or custom light .. Should be easier on the fingers regards Cadno

i use middle strings they hurt my fingers and i muting the strings , how would i improve it , getting extra light strings?

Hi I have used normal strings and yes they do hurt, now I use light strings or extra light strings and I love them, they are easer on the finger and they sound good to, the ones I like are Elixir Acoustic light 012-053 nanoweb ultra thin coating with anti-rust plane steels. not cheap but good and they last along time, hope this helps.

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Martin MA540FX FX Flexible Core 92/8 Phosphor Bronze Acoustic Guitar Strings - Zinc Flashed Inner Core (Custom / Light, .012 - .054)

Martin MA540FX FX Flexible Core 92/8 Phosphor Bronze Acoustic Guitar Strings - Zinc Flashed Inner Core (Custom / Light, .012 - .054)

Product ID: 48848877

Details

Brand
MARTIN
Colour
Flexible Core
Instrument
Acoustic
String gauge
Custom Light
String material type
Bronze

🌟92/8 Phosphor Bronze for Rich Tone

🎸Custom Light Gauge .012-.054

🛡️Zinc Flashed Inner Core for Durability

5771 som

Duties & taxes included

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Description

🎶 Elevate your sound, bend the rules, and never miss a beat!

RICH WARM ACOUSTIC TONE - 92/8 phosphor bronze alloy delivers vibrant projection and body for every playing style.
UNMATCHED TUNING STABILITY - Zinc-flashed inner core and silk ball-end wrap protect your bridge and keep your sound locked in.
CUSTOM LIGHT GAUGE FOR VERSATILITY - Perfect balance of playability and tone, ideal for both stage and studio professionals.
CRAFTED IN MEXICO WITH MARTINS LEGACY - Trusted craftsmanship ensures consistent quality and performance every time.
PRECISION ENGINEERED FOR SONIC EXCELLENCE - Flexible core design reduces finger fatigue and enables huge bends with ease.

Martin MA540FX FX Flexible Core Acoustic Guitar Strings feature a custom light gauge (.012-.054) crafted from 92/8 phosphor bronze with a zinc-flashed inner core for enhanced durability and tuning stability. Designed with a flexible core and silk ball-end wrap, these strings reduce finger fatigue and protect your guitar’s bridge while delivering rich, vibrant tone. Made in Mexico, they embody Martin’s commitment to premium quality and sonic excellence, perfect for professional musicians seeking superior performance on stage or in the studio.

Specifications

ASIN	B0029SYO0S
Best Sellers Rank	1,713 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 107 in Guitar Strings
Body Material Type	Phosphor Bronze
Brand	MARTIN
Brand Name	MARTIN
Coating Description	Bronze plated
Coating description	Bronze plated
Colour	Flexible Core Phosphor Bronze Light Tommy's Choice 12-54
Country of Origin	Mexico
Customer Reviews	4.6 out of 5 stars 765 Reviews
Finish Type	Bronze Plated
Global Trade Identification Number	00729789390286, 00729789558013
Included Components	6 Strings
Instrument	Acoustic Guitar
Item Type Name	Acoustic Guitar Case
Item Weight	0.05 Pounds
Manufacturer	Martin
Manufacturer Part Number	41Y19MA540FX
Material Type	Phosphor Bronze
Model Name	FX
Model Number	MA540FX
Number of Items	6
Product Warranty	1.
Recommended Uses For Product	General use with acoustic guitars for various playing styles
Set Name	MFX740 Light (12-54)
String Gauge	Custom Light
String Material Type	Bronze
String gauge	Custom Light
String material type	Bronze
UPC	729789390286 729789558013

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