7. For each of the four cross piece ends insert an elbow piece. It may take some effort to get it in and you may have to hit it with a hammer.

7. For each of the four cross piece ends insert an elbow piece. It may take some effort to get it in and you may have to hit it with a hammer.

7. For each of the four cross piece ends insert an elbow piece. It may take some effort to get it in and you may have to hit it with a hammer.