Features: <br> <br>Made of fine glass,durable and has long service life. <br>Glass slider is a guitar playing skill for better performance. <br>Glass sliders are very useful in guitar playing. <br>The glass slider is a modification of the metal slider, lighter and more convenient to use. <br>Glass sliders are mostly playing blues, country music. <br> <br>Specification: <br>Color:Transparent <br>Material:Glass <br>Sliding Length(Optional):28mm/1.1in 51mm/2.01in 60mm/2.36in 70mm/2.76in <br>Outer Diameter: 25mm/0.98in <br>Inner Diameter: 21mm/0.83in <br> <br>Package List: <br>1*Glass Slid <br>1、Made of fine glass,durable and has long service life. <br>2、Glass slider is a guitar playing skill for better performance. <br>3、Glass sliders are very useful in guitar playing. <br>4、The glass slider is a modification of the metal slider, lighter and more convenient to use. <br>5、Glass sliders are mostly playing blues, country music.