Backpack Strap Buckle Replacement

Use a seam ripper to rip out the thread.

Pick up the strap buckle that was attached to the strap.

Take out the material from the old buckle.

Place the material into the new buckle.

Look for the original spot which it was originally sewn and place it there.

Use a needle and thread to sew the material linking strap and buckle to the bag.

Finally place the strap length adjuster into the buckle.