Clamp-on holder

A security tag holder comprising:

• a first member having one end and an other end;
• a second member having one end and an other end, said first and second members being pivotable relative to each other;
• and
• a security tag held by one of said first and second members,
• said first member having a first clamping region at said one end thereof and a first locking region at said other end of said first member,
• said second member having a second clamping region at said one end thereof and a second locking region at said other end of said second member,
• said first locking region of said first member including a recess and a fixed magnetic element,
• said second locking region of said second member including a movable magnetic element and a bore dimensioned to accommodate said movable magnetic element, said movable magnetic element being movable between an unlocking position wherein said movable magnetic element is received in said bore and a locking position wherein a first part of said movable magnetic element is located in said bore, and a second part of said movable magnetic element is located in said recess,
• said first and second members being relatively pivotable between an open position wherein said first and second clamping regions are separated from one another and a closed position wherein said first and second clamping regions are urged towards one another,
• said movable magnetic element being moved from said unlocking position to said locking position to lock said first and second members against relative pivotal movement when said first and second members are pivotably moved from said open position to said closed position.