The 80/20 -40 -80-80 T-Slot Aluminum Framing Black 2”x 2” . This is in 12’ lengths I have 21 pcs . and is a high-quality metal alloy specifically designed for industrial and manufacturing applications. Known for its strength and versatility, 80/20 T-Slot framing is widely used in the construction of frames, fixtures, and other structural components. The T-slot design allows for easy assembly and customization, making it a popular choice for businesses in the CNC, metalworking, and manufacturing industries. Enjoy the durability and precision of 80/20 framing in your next project.