Thickened Glass Bottom - The salt and pepper grinder is made of thickened glass, making it sturdy to use and ensuring a long service life. The clear body makes it easy to see how much chili is left so you're ready to replenish the spices.ADJUSTABLE COARSENESS - The top of the pepper shaker grinder is equipped with an adjustable mechanism that allows for different coarsenesses from coarse to medium or fine. If you want to adjust the coarseness, simply rotate the grinding mechanism to your desired level.Suitable Capacity - With a height of 5.1 inches and a width of 2.6 inches, the pepper grinder is large enough to hold the right amount of peppercorns, salt or other spices. You don’t have to replenish them often.EASY TO USE - The spice grinder is ergonomically designed and comfortable to hold. Just twist to open or close to use, very convenient. The large opening design allows you to easily refill spices.Ceramic Blades - The pepper grinder is made with ceramic blades, which are rust-proof and easy to clean. This blade does not absorb, but helps release the flavor of spices, making it an ideal blade for use in the kitchen with a spice grinder.