Advice please - are my dreads forming too thick?

If you have new dreads that do have an inch thick base how much thicker will they become when they are mature?  

updated by @tati-bear: 07/22/15 02:13:39PM

S THICK AS THE BASE  and sincethats about the thickest thats  generaly safe  u wouldnt want any avccidental congos

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My new book Ban The Taboo Vol 1