"PYRAMID Strings are, as exactly as is possible, the same as they were in the late 50's and 60's. They are a super quality, premium string and may be considered expensive compared to the many economy brands on the market but give players the sound they have been seeking for years and last 4-10 times longer than most other strings. PYRAMID strings are actually an exceptional value in this light. Most important, however, is that they are the type of strings (construction, material, gauge and tone/timbre) that created the music and sound of the 50's and 60's in the first place. PYRAMID STRINGS ARE SIMPLY MORE MUSICAL! It is no secret that strings make the most rapid and radical change of almost any of the many factors that make up 'tone'. The spectacular musical tone and timbre of Pyramid strings is as a result of the finest materials being blended by masters of the string makers art. Pure nickel flat wounds and smaller core/heavier nickel wrap round wounds used to be available from several makers. This is no longer true! Expanding market demand for increased quantities of strings, faster production and lower prices, resulted in extinguishing the capability and desire to make these types of strings, among the world's string makers, for the most part. PYRAMID, in contrast, has made only the highest quality strings possible since 1850 and continues to do so today. PYRAMID Gold pure nickel flat wounds are the way flat wounds used to be! They give the player the ability to get exactly, some of the most famous and loved guitar and bass sounds/tones of all time. PYRAMID Maximum Performance pure nickel round wound strings are round wound that sing, combining brilliance with the warmth of pure nickel. Our Maximum Performance pure nickel round wounds are also about one third lower in tension that other strings of the same external gauge. This is the result of our use of smaller higher quality core wire and a larger diameter wrap of expensive pure nickel. This is what creates the superbly balanced and remarkable tone and timbre of these strings."