I’ve stumbled across a new gem, Cassandra Beccai. She has a very informative YouTube channel , minus all the bells and whistles, she cuts straight to the point — love it!
As a protective style, she demonstrates the installation of loc extensions using marley hair [+]. Her locs begins with two-strand twisted marley hair. You will see below how she wraps each twist, cares for and then later styles the locs.