This Pulsar Solid Top Side Window Grinder has a five piece construction with a lightweight aluminum body. The grinder portion features sharp, diamond-shaped teeth for shredding dry herb into fluffy bits; magnetic closure holds the grinder closed so that no herb is lost. Below the grinder, shredded herb falls into the glass-walled storage chamber, and herb can be viewed through the side window to determine if you need to “grind some more green”. The bottom compartment, below the sifting screen, catches keif and terp crystals that can be collected with the included scraper tool to add a little “spice” to your next smoke sesh. Grinders measure 2.5 inches (6.4cm) in diameter. Multiple color options available.