Homegrown 2.35" 4-piece grinderThe Homegrown from Cali Crusher is next level when it comes to grinders. The 4 piece design has been thoroughly engineered to give flawless operation under pretty much any conditions. Starting with the way the parts attach, they decided that a threaded design was too much effort and too time consuming to use, so they came up with their 4 way Quicklock sytem meaning you need just a quarter of a turn to either lock or open the grinder. The sifter screen