5PCS 47.2in T-Slot 2040 Anodized Black Aluminum Rail for 3D CNC Laser

Built to Last: The anodized linear rail is made from durable 6063-T5 aluminum alloy with an anodized finish for excellent corrosion resistance. Versatile for Any Project: Lightweight and flexible, these linear rails can be used in a variety of projects without the need for welding.