Description Dunlop J228 metallic slides give you a clean, bright, cutting tone with great sustain. Metal slides have a more brash quality than glass, making them a favourite among blues and rock players; they really make your licks stand out in a live or recorded mix! These chromed steel slides are lightweight and have a tonal character that’s perfect for electric guitars. Dunlop slides are durable and consistent, so you know you have a quality product in your gig bag. Slide dimensions are listed in millimeters: Medium Wall: 19(inside) x 27 x 51mm. When playing slide guitar, the string is not pushed down on the fret. The slide lightly pushes the string directly over the desired guitar fret (as opposed to playing next to the fret with your finger). Which finger??- You first need to decide which finger will hold the slide. Choose from the 2nd, 3rd, or 4th finger. The decision will be based on two factors: which finger feels most comfortable and the need to use the other free fingers for fretting notes. 2nd finger muting- Most of the time the 2nd finger should lay flat behind the slide. This will provide muting of unwanted guitar strings.