Item Type: Extruder Hotend Nozzle Cleaning Kit Material: Brass and rubber Package List 2 x Extruder 10 x MK8 Nozzle 10 x Cleaning Needle 1 x Five In One Wrench 2 x Extruder Rubber Sleeve 1NO LEAKAGE: The hot end of the 3D printer is strictly in accordance with the production standards, and the nozzle is seamlessly connected to the throat to prevent leakage. Solve the problems of frequent replacement of NTC burnout, disconnection, rapid aging of heating rods, etc. 2UNIVERSAL NOZZLE: MK8 brass nozzle is compatible with most 1.75mm 3D printer filaments for a wide range of applications 3WEAR AND CORROSION RESISTANT: The inner wall of the MK8 brass nozzle is smoother, without burrs, and has good wear resistance, heat resistance and corrosion resistance, providing you with accurate and smooth extrusion 4APPLICABLE MATERIAL: Metal 3D printer extruder hot end kit can withstand higher temperature 40~+260(40~+500), multiple printing material options, such as ABS, nylon and polycarbonate, etc. 1.75mm 3D printer filament 5PACKAGE CONTENTS: Made a practical and effective product packaging match for your experience, the set includes 2 extruders, 10 MK8 nozzles, 10 cleaning needles, five in one wrench, 2 extruder rubber sleeves