Features Easy Installation and Replacement: This 3D printer upgrade kit includes aluminum plate accessories, screw accessories, timing belts, and 300mm linear guides, ensuring a hassle-free installation process and easy replacement when needed. Enhanced Compatibility: Specifically designed for Ender 3 Pro 3D printers, this upgrade kit is also compatible with Ender 3 Pro V2, offering standard size and strong compatibility for a wide range of 3D printer models. Durable Linear Guides: The 300mm linear guide is crafted from high-quality material, providing wear resistance and durability, along with a single slide block for smooth and effortless operation. Precision and Stability: Utilizing precise drilling technology, these accessories can be seamlessly mounted on 3D printers, ensuring stable and reliable operation over an extended period. Lightweight and Corrosion-Resistant: Crafted from excellent aluminum alloy material, these tools offer superior heat dissipation, long service life, and corrosion resistance, enhancing the overall performance of the 3D printer. Specification: Item Type: 3D Printer Upgrade Kit Material: Aluminum Alloy Guide Rail Size: Approx. 300mm / 11.8in Applicable Model: For Ender 3 Pro and for Ender 3 Pro V2 3D printer Package List: 16 x Aluminum Plate Accessories 19 Packs Screw Accessories (141Pcs in Total) 2 x Shaft Belts 4 x Guide Rails 300mm (With Single Slider) Note: Pay attention to the correct operation. Package List 16 x Aluminum Plate Accessories 19 Packs Screw Accessories (141Pcs in Total) 2 x Shaft Belts 4 x Guide Rails 300mm (With Single Slider)