uxcell Self Closing Double Action Concealed Door Spring Hinges 3" 2pcs Mounting Hole Diameter: 5.5mm/ 0.22"; Package Content: 2 x Double Action Spring Hinges, Install Parts; Weight: 568g Material: Stainless Steel; Product Name: Double Action Spring Hinges; Main Color: Silver Tone Loaded Door Weight: Max: 15Kg; Hinge Length(Axis not Included): 75mm/ 3" Closed Width: 68mm/ 2.7"; Hinge Thickness: 1.2mm/ 0.05" Axis Size: 91 x 18mm/ 3.6" x 0.7"(L*D); Mounting Hole Spacing: 18mm/ 0.7", 60mm/ 2.4"