Just to share for those who didn't watch it yet. The video is from Chula Hitam's Channel of Youtube (Cikgu Azizan of Gayong Labuan). I think it was uploaded since last year. Ayahanda Amin Hamzah was showing the Sundang Lipas movements. Sundang Lipas is a double lames sword of Bugis people. It is tied normally with Sarong to be put on the back.
Just a word: Beautiful...! ;)