I have it for a couple of days and I like it a lot. Trying to balance on the slackline and keeping your body tense and posture right is a full body workout. You feel the arms too !LOLZ
And, it's so easy to carry it around. From study to living room to bedroom, ... Five minutes there, five minutes there, and yu strengthen your trunk, train your balance, ...
RE: special board [#poprzeczka December 2025 #02]