Install reliable and strong shelves using shelf brackets and supports from Zoro. Here is some additional information about Knape & Vogt Pole Socket. Color: White, Material: Steel.FeaturesColor: WhiteExtended Length (In.): 3-27/32Material: SteelOpening Angle (Deg.): 90Load Capacity (Lb.): 500Package Quantity: 1Height (In.): 1-1/8"Type: Standard DutyHand: Non-HandedFinish: Powder CoatedMax. Angle (Deg.): 90For Use With: Closets, Doors, WallsSize (In.): 1-1/4"Item: Pole SocketNumber of Holes: 0Width (In.): 6.313"Length (In.): 3-13/16"Hardware: Included.