The MG733 series are wooden salt shaker and pepper mill sets. This is the customized wooden salt grinder pepper grinder with a variety of sizes and color. They are all made of beech wood.  There are 4 inches, 5 inches, 6 inches, 8 inches, 12inch and 16 inches. The grinding core is made of ceramic. It can be adjusted to coarse or fine. And colour can be customized. you could customize the size and colour as you like.