1.【Premium Materials】Our salt and pepper grinder set is made of premium natural oak, sturdy and durable, ECO-friendly and healthy. The internal structure uses a non-corrosive ceramic core and robust stainless steel, with no odor and no rust. We reject plastic materials, just to let you and your family rest assured to use professional pepper mill. If you are looking for a health convenient way of adding your favorite spices to your meals, then look no further than our wooden pepper grinders set. 2.【Easy To Use】The ease of use is the single most crucial factor that we consider when designing this manual pepper grinder for your use. Not only easy to use, but the premium ceramic core ensures a smooth and even grinding effect every time. Just twist the non-slip nut on the top of the spice grinders to remove the cover and add the seasoning you need, reclose the lid and turn, and you can get delicious condiments in just a few seconds! (Turn clockwise for fine, Turn counter-clockwise for