The Dunlop Glass Moonshine Slide combines the soulful sound of our popular Pyrex Glass Slide with the non-slip interior grip of our Ceramic Slides. Available in the ever popular 213, 215 and now 218 sizes, the Glass Moonshine Slide provides the warm and detailed top end of glass but with greater control due to the treated interior. The next step in the evolution of Glass Slides! Heavy Wall Thickness: Medium (20x29x69mm)