Safe Materials - This pepper and salt grinder is made of natural wood and contains no preservatives or glue. The exterior is hand-polished for a smooth, comfortable feel. Dimensions: 22 × 5.5 cm. Cleaning Method - Rinse with water or grind with fine, tasteless grains (such as rice) to filter out residue. Do not overtighten the screw to avoid damaging the ceramic grinding core. Adjustable - This pepper and salt grinder has an adjustable ceramic grinding core and a cleverly designed wooden knob that easily maintains the freshness and aroma of the pepper, keeping it fresh every time you use it. Simply tighten for a fine grind and loosen for a coarse grind. The grinder is easy to shake and grinds coarse sea salt, pepper, and other ingredients into a fine, even powder for precise measurements. Versatile - Due to its versatility, our pepper and salt grinder has become an essential item in homes, kitchens, and restaurants. They can be used to grind various spices such as black pepper, white pepper, chili pepper, sea salt crystals, or other herbs, allowing you to enjoy multiple flavors simultaneously and add more taste to your meals. The Ideal Gift - This exquisite salt and pepper grinder set, made from traditional solid wood, is like a polished work of art. This pepper grinder set not only complements any home or kitchen style but also makes a wonderful gift for weddings, anniversaries, housewarmings, and birthdays.