EJ45, normal tension, is D'Addario's best selling classical set, preferred for its balance of rich tone, comfortable feel and dynamic projection. 

Pro-Arte, the world's most popular classical strings are D'Addario's premium classical guitar string sets. All Pro-Arte treble strings are sorted by a sophisticated computer-controlled laser machine which performs diameter and tension measurements, ensuring true-sounding, precise trebles in every set. Pro-Arte basses are wound using silver-plated copper on a multi-filament nylon core for consistent and warm, yet projecting tone.

• D'Addario's best selling Pro-Arté set, Normal tension offers balance of volume and comfortable resistance
• Laser sorted clear nylon treble strings for consistent, precise intonation
• Precision wound basses for warm, projecting tone and the utmost consistency
• Made in the U.S.A. for the highest quality and performance
• String Gauges: Trebles .0280, .0322, .0403 Basses .029, .35, .043
• Environmentally friendly, corrosion resistant packaging for strings that are always fresh

• Diameter		Tension
  Item #	Note	Inches	mm	lbs	kg
  J4501	E	0.0280	0.7112	16.230	7.360
  J4502	B	0.0322	0.8180	12.040	5.460
  J4503	G	0.0403	1.0236	11.880	5.390
  J4504	D	0.0290	0.7366	15.620	7.080
  J4505	A	0.0350	0.8890	15.890	7.210
  J4506	E	0.0430	1.0922	14.190	6.430