Very practical two knots

[@blacklabel810]

1:12 雖然拉得很緊，繩結還是很容易解開，謝謝老闆

[@Zendukai]

Saved to my knot videos, thankyou.

[@Silvio.S.Arruda0045]

excellent video congratulations

[@xiaomagexj]

什么结 介绍一下