The bumper extension allows the threaded support to be up to 26" higher than the main supports, which allows even more objects to be held. The large tube will slide over the threaded support tube, then use one of the smaller tubes to extended the threaded support. Comes with a short and long small tube to adjust to any height from 9" - 26" above main supports. Powder coated.
-Supports up to 50 lbs. being hand tight