The C Series grinders are a great addition to Timemore's line of coffee hand grinders. Lightweight and increased grind capacity. They utilize a reliable spring mechanism to lock the inner burr into position, and ball bearings to hold the grind shaft in place, to ensure you're not losing even a little bit of grind quality. The well-designed handle connection gives this grinder series an exceptionally precise grind and a smooth turning handle with every rotation. The new and improved grounds bin is lined with aluminum for greater durability and a static free grinding experience.