Constructed of high-grade cnc aluminum, these grinders are another example of Grav Labs ability to design something you want purely for it's looks before you even see it's function. Luckily this thing works as good as it looks! The four-part design features three cut-outs in the main body with polycarbonate windows so not only can you tell how much herb is already in your grinder, but you can also see how finely it is ground. The lid is held on by a powerful magnet so it won't come loose during you travels and the cleverly designed cutting edges of the blades will make sure your herb is ground to the perfect consistency without getting crushed. Another cool touch is that the sifter screen in the base is magnetised and removable to make things even easy when it comes to cleaning. Perfect grinding, every time......