ACOUSTIC GUITAR STRINGS / GUITAR SLIDE 2 PRODUCT BUNDLE: GUITAR STRINGS - Phosphor Bronze was introduced to string making by D'Addario in 1974 and has become synonymous with warm, bright, and well balanced acoustic tone. D'Addario Phosphor Bronze strings are precision wound with corrosion resistant phosphor bronze onto a carefully drawn, hexagonally shaped, high carbon steel core. The result is long lasting, bright sounding tone with excellent intonation. D'Addario, the world's largest manufacturer of musical instrument strings, is known as The Players Choice with a reputation for unsurpassed quality and consistency. D'Addario's innovative, packaging reduces waste and provides protection from corrosion. All D'Addario strings are manufactured in the U.S.A. using proprietary, digitally controlled, state-of-the-art machinery for unmatched performance, set after set. String Gauges: Plain Steel .012, .016, Phosphor Bronze Wound .024, .032, .042, .053. GUITAR SLIDE - Whether you're learning how to play slide guitar or you can play slide licks and riffs like a pro, our guitar slides are a must have! Unlike other "machine made" products on the market like Dunlop Ernie Ball or Fender guitar slides, our vintage copper guitar slides are made entirely by hand in the U.S.A. Because there is no machining involved in the process, each is unique in its own right. Each is hand cut at 2 inches in length from the finest 3/4" copper available. A byproduct of this hand cutting process is a slight ridge around the inside at each end which assists in keeping the slide in place on your finger as you play. Your slide is then smoothed by hand and finally aged to perfection using our proprietary process yielding a finished product that screams "vintage" in its patina and coloration. If you want to make a statement as bold as the music you play, our vintage copper guitar slide is the choice for you. It's also a great gift idea.