Glass, Stainless Steel, Abs
This hand coffee grinder requires no batteries, power or long plastic cords and consistently eliminates over 90% of the noise created by electric coffee bean grinders. And its compact size allows you to carry and enjoy a fresh cup of coffee even while working, camping, backpacking and traveling. Durable ceramic burrs transfer less heat than steel burrs during the grinding process, which reduces the impact on the original flavor of the ground coffee,and allows the coffee beans to get a better grind before brewing.