Simply slide Trapper Strap ends over the guitar’s strap button so the button is locked tight, just above the Ibanez logo.
USA PATENT #7781656, JAPAN PATENT #4732503

The Grip Adjuster enables you to find your most comfortable position with one simple operation. By pressing the lever, the Grip Adjuster slides and changes strap length. Sliding the Grip Adjuster down while holding the lever makes the belt shorter and moves the guitar up, while sliding the Grip Adjuster up, will give you the opposite effect. JAPAN PATENT #4773493