Dunlop Manufacturing, Inc. 215 Glass Slide Medium Heavy Wall

Slide identity

The Dunlop 215 is a heavy-wall glass slide built for guitarists who want a warm, thick tone with strong middle harmonics. Its medium diameter fits a wide range of guitars and playing styles, making it a versatile addition to any musician's toolkit. The solid glass construction resists breakage and delivers consistent sustain across electric and acoustic instruments.

Wall thickness decides tone

The heavy-wall design is the single specification that shapes the slide's voice, adding mass that emphasises lower mids and extends sustain compared with thinner glass. This weight also improves string contact stability, helping players maintain even pressure for clean, singing notes. Choose this model when you want that fuller, richer resonance rather than a brighter, thinner sound.

Sustained playing feel

Under continuous use the dense glass retains a steady temperature, so the slide glide stays consistent from the first bar to the last without the friction changes that thinner walls can develop. The smooth surface resists wear from repeated string contact, preserving the original tonal character over long sessions. Its balanced mass reduces hand fatigue during extended slide passages.