Size: Length: 1.57"; Width: 1.57"; Height: 1.3”; Hole Diameter: 0.34".Made of aluminum, the sturdy bracket can be easily disassembled and reused. Quality controlled, smooth deburred edges.Compatible with 15 series aluminum extrusions or 1.5" extrusions, the 8020 corner bracket can be used with many aluminum extrusion frames.Can be used for shelving, home improvement projects, t-slot aluminum extrusion or 3D printer applications.Package Included: 10 * Corner Bracket. Size: Length: 1.57"; Width: 1.57"; Height: 1.3”; Hole Diameter: 0.34". Material: Made of aluminum, the sturdy bracket can be easily disassembled and reused. Quality controlled, smooth deburred edges. Compatible: Compatible with 40 series aluminum extrusions or 1.57" extrusions, the 8020 corner bracket can be used with many aluminum extrusion frames. Application: Can be used for shelving, home improvement projects, t-slot aluminum extrusion or 3D printer applications. Package Included: 10 * Corner Bracket.