[For 3D Printers]Metal MK8 ender3 Hotend upgrade kit is compatible with almost series of and 3D printers, such as Ender3/CR10/CR10S. The hot end is assembled for quick installation. [Applicable materials]Metal 3D printer extruder hot end kit can withstand higher temperature -40~+260C (-40~+500F), a of printing materials are available, such as ABS, nylon and 1.75mm 3D printer filament such as carbonate. [Strictly Upgrading Materials]The 3D printer hot end strictly abides by the production standards, and the nozzle and throat are seamlessly connected to prevent leakage. Solve the problems of frequent replacement of NTC burnout, disconnection, and rapid aging of heating rods. [BETTER 3D PRINTING EXPERIENCE]We have made a practical and effective package to satisfy your experience. The total length of the steel needle: 70mm, the color of the needle box cover is random, and cannot be specified Material:metal, brass, plastic colour:red, gold, black Package Contents: 1 Set x 24V Assembled Hot End Kit 3 x Brass Nozzle 4 x Gold Aluminum Heating Block 4 x Black Heating Block Silicone Cover 1 Set x MK8 3D Printing 0.4mm Nozzle Cleaning Steel Needle(5 pieces) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.