I bought this slide on a whim with the intent of learn slide guitar. At the time I had a steel slide but the rust from the inside was insufferable and I didn't like the harshness of it's sound. Having seen people like Derek Trucks, Josh Homme, and Dan Auerbach using glass slide I decided to give them ago. And I'll tell you something, they aren't wrong! The slide is far more comfortable on my fingers and the sound it gives is so much nicer than any metal slides I've ever tried and there is more rust from sweating! And at this price this is a definite must buy!