Strap uniting device for wearable device

A strap uniting device of a wearable device, the strap uniting device comprising:

• first and second straps;
• and
• a uniting tool disposed in an outer surface of and configured to protrude through the first strap and the second strap to thereby bind to the second strap, the uniting tool comprising:
• a substantially planar base;
• at least one guide comprising a first portion thereof attached to the base and a second portion thereof including a terminal distal end;
• and
• at least one catching part comprising a first portion thereof attached to the base and a second portion thereof including a terminal distal end,
• wherein the second portion of the at least one catching part comprises a part configured to inhibit removal through uniting openings of the first and second straps,
• wherein the at least one guide is configured to facilitate insertion and removal through the uniting openings and the second portion of the at least one guide is devoid of a part configured to inhibit removal through the uniting openings,
• wherein the at least one guide and the at least one catching part are substantially a cylindrical shape, and
• wherein the outer surface comprises a surface opposite to a surface that contacts a surface of the second strap.