... a tightrope only lower to the ground (and the line is slack not tight). ... It is reputed to help core balance, mental concentration and smoothness of motion. I ... !Extra soft flexibility!--------------------Slackline,Slack line,Slacklining,Tightrope,Monkey Slocklines,Germany ... Tyler Stratton style Slackline,lawn rope,Walk Freely Balance SlacklineET-751901 Classic Style ...