"Precision-crafted grinder with CNC stainless steel burrs for consistent, fine grinding, the ZereHero Portable grinder features an ergonomic aluminum alloy body, quiet 70dB operation, and long-lasting 800mAh battery for effortless coffee preparation. Material: Aluminum alloy/POM/PC Capacity: 25g Color: Grey/Silver Battery: 800mAh Weight: 660g"