Features: Brand new and high quality Highly Precisions, light weight, surfaces texture, beautiful Use hollow design, the weight of the product is the lightest while ensuring that the product have sufficient structural strength and stability, effectively reducing the error caused for the deformation of the gantry due to its own weight, and effectively reducing the weight of the entire machine. Both end with notches, which are fully suitable for official gantry design. You only need to add two fixing block to replace and install it, which is simple and convenient. Threaded holes for gantry guide installation, not need to install nut, reducing weight and making installation easy Specifications: Material: ABS Size:Approx.430mm/16.93inch Package Includes: 1x Hollow Gantry note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.