Try Razac’s Locafella Product Line, For The Best Products  for Dread lock Maintenance,

My 1st ever install of extensions and I think they came out great and look authentic
I've gotten many compliments on my "locs" and people think they are real and all my hair and the more you practice the better they look.

You can use anywhere from 2-5 packs depending on the brand of hair,thickness of your hair and extensions, and your desired look.