Made of polished 304 stainless steel, corrosion-resistant, sturdy and durable.Easy to use, just fix the bracket with screws(Screws are not included).Suitable for fixing various square pipes, firm and convenient. It is widely used in house door and window, shed, barn, etc.Specification:Material: 304 Stainless SteelFinish: PolishingTotal Size: 66 x 20 x 20mm / 2.6" x 0.79" x 0.79"(L*W*H)Inner Height: 18mm / 0.71"Inner Width: 22mm / 0.87"Material Thickness: 1.8mm / 0.07"Hole Diameter: 8mm / 0.31"Hole Center Distance: 46mm / 1.81"Package Content: 6pcs x U Shaped Connector Bracket.