100% and New Material: Aluminium Alloy Finish:Oxide Color: Sliver Application: Build CNC routers, 3D printers, CNC laser cutters, CNC plasma cutters, robotics projects, 3D carvers, machine guards, workstations, etc. Convenient to use, they can be simply fastened with bolts and nuts connection. 1. High quality aluminum alloy construction: This L joint plate is made from high quality aluminum alloy, ensuring its durability and strength. 2. Oxide finish for added durability: The oxide finish on this joint plate provides extra protection against wear and tear, making it long-lasting and reliable. 3. Perfect dimensions for 20x20 mm aluminum profiles: With dimensions of 60 x 60 x 4mm, this joint plate is specifically designed to fit 20x20 mm aluminum profiles, making it ideal for use in 3D printer frames. 4. Easy to assemble with M5 screws and t nuts: The 5.2mm hole diameter of this joint plate allows for easy assembly using M5 screws and M5 t nuts, providing a secure and stable connection. 5. Pack of 10: This pack includes 10pcs of the L joint plate, providing ample quantity for your assembly needs. Package include:10pcs L brackets _x000D_ _x000D_ _x000D_