Description Features: brand new and high quality Package include: 2pcs L / for T aluminum joint plate. Fit 2020 series Aluminum extrusion. High quality aluminum alloy; used with M5 screw and M5 for t nut. 2020 Series Aluminum Profile Connector widely used for building industrial aluminum frame structures, 3D printers, CNC Routers, CNC laser- cutters, Robotics Projects. Rigid connection, used to connect pieces of 20mm aluminum extrusion at a 90 degree angle. Specifications: Material: aluminum alloy Color: black Quantity: 2pcs Shape: L / for T shape Size: approx. 12x12x0.6cm/4.72x4.72x0.24in Package Includes: 2PCS x Joint Plate note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!