*KeyFeatures *2040 T Linear Rail European Standard: Our aluminum extrusion rail includes 4 aluminum alloy rails (39.4 in / 1000 mm each)everything you need for easy setup! *Built to Last: The anodized linear rail is made from durable 6063-T5 aluminum alloy with an anodized finish for excellent corrosion resistance. Whether it's humid or dry, these rails are designed to stand the test of time. *Smooth and Precise: Cut with high precision for smooth, burr-free surfaces. This means less friction, smoother operation, and more reliable performance. Youll notice the difference in both efficiency and lower maintenance costs. *Easy to Customize: The side groove design works with M4, M5, M6, T-slot nuts, pulleys, and moremaking assembly a breeze. Ideal for your DIY projects and fast builds. Packaging does not include nuts and bolts. *Versatile for Any Project: Lightweight and flexible, these linear rails can be used in a variety of projects without the need for welding. Whether it's a 3D printer, automation equipment, workbench, or furniture, this linear rail is ready to help you create something amazing. ******************************************************************************************************* *Specifications Item Model Number: 2040-100-4 Number of Pieces: 4 Center Hole Size: 0.16 in / 4.2 mm Compatible T-Slot Nut Sizes: M4, M5, M6 Material: 6063-T5 Aluminum Alloy Surface Treatment: Anodized Net Weight: 6.94 lbs / 3.15 kg (Includes 4 pieces) Product Dimensions: 39.37 x 0.79 x 1.57 in / 1000 x 20 x 40 mm ******************************************************************************************************* *Pakcage Content 1 x User Manual