Dreadlocks Extension online class shows you how to do extension from basic to pro learn how to Re-tighten locs how to add lock extension to the hair temporary from making your own, you have to have a web-cam to be in this class after paying for your class your material will be ship to you, in order to log on. there is a no refund policy the class is only 2 hours long This Class is only to Learn a Technque advance your skill in your salon or at home.