BEST MATERIALS: Made with the finest materials, Ceramic Burr and Glass container, preserving the taste of your grinds. PREMIUM DESIGN: Rubber hopper cover keeps beans in place while grinding, not all over your counter. Non-slip base makes for easy use. STORAGE OPTION: Comes with cover for glass container to store extra grinds. USER-FRIENDLY: Simply turn the durable handle that was specifically designed to fit your hand perfectly as you prepare your perfect cup of coffee with ease. EASY TO CARRY: No batteries or electricity are required to operate the portable grinder, allowing you to enjoy fresh ground coffee anywhere, even while camping!