Page "Climbing protection" Paragraph 5

Solo climbing — as distinct from Free soloing, which is done without any protective gear — involves utilizing some sort of protection.

A " solo climber " may place protection and clip in with a short tether for safety during a difficult move, then remove the protection and continue the ascent.

Or they may employ some form of self-locking device, such as a Silent Partner, in lieu of a belayer, allowing a soloist to climb without a partner.