I usally do about 21 sets for my body,except for arms I do 12 sets.
to get some more size,should I do 6-8 reps,8-10 or pyrimid 12,10,8.
and I want my arms to get bigger,they just will not grow.
my stats are I am 160lbs pretty ripped and my arms are 15 inches,so how can they grow.