The Zirconia Sharpener is an expression of the beauty of analog! It doesn’t get more simple or perfect than this! The blade and body are made from zirconia, fused into a single uni-body block. By utilizing zirconia’s unique material properties, the blade doesn’t need to be changed and offers a smooth sharpening experience. Unlike plastic versions with an affixed blade, you won’t mind leaving this one out as an accessory on your desk!