Features 1、Upgraded High Speed Kit: Suitable for SP-5 3D Printer. 2、High Speed Extruder and Double Fans: Up to Maximum 350mm/s printing speed, combine with 10000RPM cooling fan, provides great printing performance. 3、Large 3.5 inch touchscreen: supports multilingual (Chinese, English, French and Italian) interface operation. 4、9.5:1 Gear Ratio:The printing model has steadier motion and stronger filament grip, and can be compatible with various 1.75mm diameter consumables. 5、This upgraded high speed print kit has stable performance. Specification Specification: Extruder mode: short-range extruder (with deceleration) Display: 3.5''Color Touchscreen Maximum printing speed: 350mm/s Nozzle diameter: 0.4mm Usable filament diameter: 1.75mm Heating power: 50w Package Size: 255x240x80mm/10x9.4x3.1in Package Weight: 1280g/2.8lb Package List 1 x Hotend 1 x Extruder 1 x Bellow Mount 1 x Front Cover 1 x Metal Carriage 1 x Back Cover 1 x Display Screen 1 x Motherboard 8 x Non-gear idler pulley 1 x Display Cable 2 x Timing Belt 1 x Data Cable