Nozzle: 0.4mm x 1 For 3-V3 ceramic heating block Kit:High Thermal Conductivity Ceramic Higher temperature resistance and faster speed High thermal conductivity High flow printing Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:Silica gel Package Contents: 1 x heating block Kit Only the above package content, other products are not included. Note: Light reflection 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.