This is V5 heater block for I3 Mega 3D printer parts.The theme of the product is made of all metal, very hard and durable.The tail end of the throat pipe is inclined at a 45° angle, the feeding is smooth, the cross section of the pipe mouth is smooth, and the nozzle is seamlessly connected to prevent leakage.The lead length of the thermistor and heating rod is the same as the original, easy to install.