Features: Brand new and high quality Take your 3D printing to the next level with the Hollow Rail MGN12H/MGN9H Linear Guide Rail Slide for Voron 3D Printer. Its lightweight design and high speed capabilities ensure optimal printing results. Experience smooth and efficient movement with the Hollow Rail MGN12H/MGN9H Linear Guide Rail Slide. Its quiet operation and long lasting accuracy ensure a seamless printing process. Designed for 3D printing enthusiasts and professionals alike, the Hollow Rail MGN12H/MGN9H Linear Guide Rail Slide is a versatile accessory. Improve your print effortless with this easy to install part. Whether you're a hobbyist or running a printing business, the Hollow Rail MGN12H/MGN9H Linear Guide Rail Slide is perfect for various printing scenarios. From intricate designs to large scale projects, experience enhanced stability and efficiency. Unlock new possibilities in 3D printing with the Hollow Rail MGN12H/MGN9H Linear Guide Rail Slide. Achieve exceptional print quality and unleash your creativity with this high quality and customizable accessory. Specifications: Material: Metal Type: MGN9H, MGN12H (optional) Size: 300mm, 350mm, 400mm (optional) Style: No pre compression, light pre compression, heavy pre compression (optional) Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Set Linear Rail kit