man there is nothing to argue. 3.5 grams is an eighth. that is why 7 is a quarter and so on...i was terribble at math ,weed helped me..........when i was working construction the foreman asked me to tell him the mesurement of something, i dont remember but i do remember this i yelled back (that would be 68'' and a quarter. he was like are you fucking sure its not a half....i said yeah i know the fucking differance between a quarter and a half ...at least in weed.....