Features: Brand new and high quality Made from high-quality aluminum, these connectors provide a strong and reliable connection for your hardware needs. Designed to work with wide range of hardware, these connectors are perfect for DIY enthusiasts, professionals, and anyone between. With this set of connectors, the possibilities are endlessly. Let your creativity run and build something truly unique. Widely used for building industrial aluminum frame structures, 3D printers, Routers, 3D carvers.etc. Light in weight, small in size, convenient for you to store and manage, will not take up too much space. Specifications: Material:Aluminium Type:T/L Color:Black Size:Approx.60x60mm/2.36x2.36inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set 5 Hole Joint Board