Descriptions: Material: Oak, ceramic core 1. Oak multi-functional quick-grinding grinder, multi-purpose grinding, adjustable thickness, preferred rubberwood material. 2. Easy to clean, adjustable thickness, environmentally friendly log, comfortable feel, widely used, ceramic grinding core. 3. Manual salt and pepper grinder set is 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. 4. Our professional salt and pepper mill set is suited for black pepper, white pepper, dried pepper, sesame, sea salt, Himalayan salt, cumin and it's a perfect companion for kitchen, restaurant, party, and an outdoor picnic. 5. If you're looking for a gift for any holiday or special occasions, such as Mother's Day, Christmas, housewarming, or weddings, this is what you need!