UHMW PLASTIC. SET THESE SPOTTERS AT THE APPROPRIATE HEIGHT AND LIFT WITH CONFIDENCE. THESE ARE HEAVY DUTY SPOTTER ARMS OVERBUILT WITH 7 GAUGE STEEL. REST ASSURED WE'VE GOT YOU COVERED. COMPATIBLE WITH 1" DIAMETER 3"X3" TUBING. GUARANTEED TO WORK WITH OUR 3X SERIES RACKS.
*USE ON THE OUTSIDE OF THE BD3X RACK NEEDS TO HAVE THE RACK MOUNTED DOWN INTO THE GROUND. WALL RACKS ARE FINE BECAUSE THEY ARE ANCHORED TO THE WALL.