Step 1:
Place the back of the picture frame on a flat surface, ensuring that the four small holes on the frame are facing upwards. (Note: these holes are for hanging purposes.)
Step 2:
Align the two shorter metal bars with the ports of the longer metal bar, taking note of the front and back of the picture frame. The front has small grooves while the back is smooth.
Step 3:
Push the two shorter metal bars forcefully into the grooves of the longer metal bar, ensuring that there are no gaps.
If you have any questions or need further assistance, please don't hesitate to reach out.