NATURAL WOOD MATERIALThis manual salt and pepper grinder set is made of natural oak wood, stainless steel and ceramic grinding mechanism,no plastic material,non-corrosive, you can use safely. Elegant and fancy salt and pepper shakers are a must have to any kitchen. . ADJUSTABLE GRINDING MECHANISMSalt and pepper shakers with adjustable ceramic grinding core, you can easily adjust the grind grade in them from fine to coarse by twisting top nut. This salt and pepper grinder set are totally refillable. Easily refill the sea salt or black pepper to the pepper mill or salt grinder by removing the top cover, with no mess. . CERAMIC GRINDER COREThe ceramic grinder core is non-corrosive, no plastic material, which wont absorb flavors, while a stainless steel knob on top of each salt and pepper mill allows you to easily adjust from a fine to coarse grind as your preference. . SUITABLE CAPACITYThese professional wood salt shaker and pepper grinder feature with a traditional 6 inch tall, which can hold the sea salt or black pepper about 5 oz, large capacity avoids repeat spice refilling. . EASY TO IDENTIFYThe two different colors of White and Black grinders can be easily identified as the sea salt grinder and pepper mill. They are perfect decorations for kitchen or any other places for their beautiful and elegant design. .