Prime-Line Products GD 52197 Bottom Lifting Brackets without Fasteners and 7/16-Inch Stem,(Pack of 2) Heavy duty 13 gauge galvanized steel Left and right brackets included Accepts a 7/16in. diameter roller stem Easy to install Note: Packaging shown in images is official Prime-Line packaging. If product does not arrive in this retail package, product may be counterfeit and you should report it to Prime-Line Products.