ok i have had a grinder for a long time but my question is when i first got one it had a small flat silver circle thing underneith it that i took off becase i felt i didnt need it. Today my friend bought one & it reminded me about that. My Question is what is the purpose of that for ?
a screen for the crystal to gather underneath...the trick is to grind your friends weed and the the crystal home that gathers under the disc[screen]
