Cirrus Glass Grinder, thoughtfully engineered for the everyday smoker. Milled aluminum teeth, sculpted walnut core, and a borosilicate base in perfect harmony. Our classic Tile design gives an old world feel, hand-crafted for the perfect grind. - - - PRODUCT FEATURES: Borosilicate glass 6mm thickness Black walnut lid with natural grain Magnetic & silicone closure Aluminum teeth for smooth grind 2.5inch diameter