Portable Manual Coffee Bean Grinder Key Features Precise 40 Levels Adjustable Grind Control Fine to coarse dial settings support espresso, pour over, French press and drip coffee for customized brewing flavors easily. Durable Conical Burr Grinding Core Stable burr delivers uniform powder texture, avoids overheating coffee beans to preserve original rich aroma and taste fully. Compact Portable 30g Capacity Design Lightweight 385g build fits backpacks and bags, perfect handheld mill for travel, camping, office use and outdoor coffee making. Ergonomic Smooth Hand Crank Operation Labored-saving crank handle offers steady spinning, ribbed non-slip body ensures firm hold during manual grinding process. Transparent Bottom Storage Chamber Clear container lets you view powder volume clearly, easy to disassemble for quick cleaning without hidden coffee residue buildup.