Label Printers -Dual Driver Extruder Highlights Generic Brand Dual Driver Extruder Description: This upgrade kit is specially designed for Ender 3/3Pro 3D printer, introduces support for the upgrade three-point level. This upgrade kit including XY axis belt screws and aluminum plate kit Perfect flatness and surface beauty, rigid surface to balance the heatbed. Made of aluminum alloy, brushed and anodized for perfect flatness and beauty, the rigid surface is used for the balanced heated bed Meet quality standards, tested before shipment, you will get accuracy, efficiency and quality of maximum impressions. Specification: Item Type: 3D Printer Parts Material: Aluminum Alloy Blue Color Size: 35.4 x 9.5 x 7cm/13.9 x 3.7 x 2.8inch Package Include: 1 aluminum plate set 1x screw kit 1x X-axis belt 1x Y-axis belt 1x linear rail Note: 1.Please allow 1-3cm error due to manual measurement, thanks. 2. Due to the difference between different monitors, the picture may not reflect the color of the item. Please understand, thank you.