2020 T Slot Extrusion Linear Rail. This linear rail meets European standards and is crafted from high-quality 6063-T5 aluminum alloy, ensuring excellent strength and stability. The anodized surface treatment provides outstanding corrosion resistance, making it durable and reliable in various environments while maintaining the appeal of your equipment. The side grooves are compatible with M4, M5, M6 T-slot nuts, allowing for quick and easy assembly, saving both time and costs for users. Ideal for professional applications like 3D printers, display stands, and furniture, this rail is the ideal solution for building custom frames, workstations, and prototypes.