Stainless Steel allows you to use this grinder for salt or pepper. Smooth action makes this single handed grinder easy to use. Hand turned from Camphor Burl.  This Camphor Burl is a rare burl that is highly prized from Southeast Asia.  This wood has a fragrance of Root Beer while being turned.  Native to Southeast Asia, widely planted throughout tropical and subtropical regions worldwide.  Mature trees grow to a height up to 100 ft with a diameter up to 4 ft. To fill your grinder just unscrew the bottom and insert your favorite pepper or grinder salt. Has a food grade finish to protect the wood. No two are alike.