Each D'Addario Glass Slide is individually heat treated to provide smooth edges and a perfect finish allowing the slide to glide over strings while the 4mm glass thickness produces a warm, thick tone. These slides are available in small, medium and large sizes.
Made from boron silicate for enhanced durability, smoothness and tone
Flawless finish and extra smooth surface glides over strings
Ring Sizes: Small - 7.5, Medium - 11, Large - 11
4mm wall thickness produces warm, thick tone and sustain