PREMIUM MATERIALS: This Manual Spice Grinder, Set of 2 Grinders, is made with durable glass and stainless steel body, Ceramic grinding core, more durable than normal steel core, no harmful ingredient, never rust not and will not absorb flavors.Easy to fill, assemble, disassemble and clean. ADJUSTABLE SIZE: Your pepper grinder which can adjust the roughness gives you superior seasoning. You can easily adjust the coarseness of the spices to meet your different needs by turning the knob on the bottom of the grinder. Please note: our products do not include salt and pepper. KEEP SPICES FRESH : Our manual pepper mill contain a perfectly fixed sealing lid, to preserve your fresh ground spices for longer. The sealed cap also reduces moisture entering your salt or pepper, and ensures that dust or other unwanted particles are free, ensuring you have a positive cooking experience. MULETIFUNCTIONAL: This grinder pepper can be used not only to grind pepper, salt, cumin, sesame and other spices,