Existing shoes strings takes much time to tie and old style. But with SRLL20, you can tie shoes string quickly and feel comfortable ! Just move the SRLL20, then you can go outside in another moment.

Standard cord lock is not good at locking “Split 2 cords” like shoes strings. But the strong feature of SRLL20 is good at locking those cords because of a Gear inside of SRLL20. Actually, SRLL20 has high tensile strength over 15kgf compare with standard cord lock 0.8kgf. (*This is our internal test data. The figure depends on cord and test circumstance.)