Features: brand new and high quality DIY 3D Printer replacement kit universal for damaged 3D printer hot end With high temperature resistance heater, heated tubing,operating temperature range:0~+300°C 0.4mm extruder brass nozzle print for head, for 1.75mm PLA ABS 3D printer 1.75mm extruder tube reduces extrusion force and improve reliability of retractions thanks to the improved internal surface finish Easy installation, one-hand nozzle replacement without grasping the hotend Specifications: Name: Hot-end Kit for Ender 3 S1 Printer Material: for Titanium Alloy + Plated Copper Nozzle Size: 0.4mm Color: As Pictures Applicable Model: For Ender 3 S1 Item Size: Mixed Weight: 18g Optional Temperature Type:Common Temperature Version/ High Temperature Version/ Upgraded High Temperature Version Package Includes: 1 PC x 0.4mm MK8 Extruder Nozzle 1 PC x Throat Tube 1 PC x Heater Block 1 PC x Thermistor 1 PCx Cartridge Heater note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 1cm errors due to manual measurement.