The nozzle can be easily and freely changed while the heater block is stationary. From the side where the heater block is fixed, use the tool to disassemble and replace the nozzle and the heating block. When using this tool, there is no need to cumbersome removal of other accessories of the printer. Features - Color: As shown - Material: Metal+Plastic - Size: 14.5x7.5x3cm - The nozzle can be easily and freely changed while the heater block is stationary; - From the side where the heater block is fixed, use the tool to disassemble and replace the nozzle and the heating block; - When using this tool, there is no need to cumbersome removal of other accessories of the printer; - This version of the tool is suitable for all printers that use the heater block; - Compatible with 3D printers that use the , ender-3, and heater modules. - Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand! Thank you! Package list: 3 x Hexagon Sockets 1 x Wrench 1 x Nozzle Removal Tool