ADJUSTABLE MOUNTING SELECTOR: The conical burr coffee grinder has a better treatment than its average coffee grinder. It features a built-in adjustable grinding Selector so that you can fine-adjust it to get the roughness you want. Just turn the knob clockwise or anti-clockwise so that you can reach The perfect size for your coffee drink. USE IT ANYWHERE: This portable manual coffee grinder is meant for you to take on the road! You can use it at home or carry it with you so you can be sure that you always have a delicious cup of fresh coffee wherever you go, whether for hiking, camping, backpacking or on the open road. It comes with a velvet bag to keep you safe and protected while you travel. EASY TO CLEAN: The coffee mill can disassemble into parts, all parts is washable without limit. And two glass jars design is more convenient to keep the powers or beans during the trip or the small party with friends.