Wooden salt and pepper grinder solid wood pepper /spice grinder material:bamboo capacity:8 inches refillable salt pepper grinders: professional salt and pepper 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. adjustable grinding mechanism: industrial salt and pepper shaker with adjustable ceramic grinding core, you can easily adjust the grind grade in them from fine to coarse by twisting top nut. solid wood salt and pepper mills spice grain grinder with adjustable ceramic grinding core kitchen tools mills.