What was the copper Michbar? What purpose did it serve?
Rashi: It was a copper ornamental netting that surrounded the Mizbe'ach 1 underneath the Karkov; 2 the bottom of the network served as the halfway mark, 3 and it was on it that the four rings that housed the poles were fixed.
Targum Yonasan: The netting caught any limbs that fell of the Mizbe'ach, which the Kohanim would retrieve and re-place on the Mizbe'ach.
Assuming the Mizbe'ach was ten Amos tall, bearing in mind that the rings for the poles were fitted on the Michbar, five Amos from the ground, how did the Levi'im carry it?
Shabbos (92a): The Levi'im were all tren Amos tall.