Grav Labs has created the ultimate grinder! This grinder is composed of high-grade, aerospace aluminum and the grinding plate is held on firmly with a strong magnet. A trio of polycarbonate windows allows you to see exactly how much of you stash is remaining! The most ingenious part is the removable magnetized screen. A simple pull of the handle will pop out the screen for cleaning or replacement. This will be the last grinder you will ever need.