Nozzle structure upgrade The heating block and the nozzle are connected by threads, and the nozzle is in with the bottom step of the throat to firmly solve the problem of falling off and reduce the possibility of leakage. The detachable nozzle reduces the cost of use. Heating block, nozzle High temperature and wear resistance upgrade, The heating block is upgraded to chrome zirconium copper and nickel plating, which can withstand 550 high temperature printing and has fast heat conduction. The nozzle is made of hardened steel SKD11 after quenching and hardening, and can be heated up to 550 or more, which is more wear-resistant and extends the service life. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Red Material:Aluminum alloy + hardened steel For Bambu X1/X1C Package Contents: 1 x For Hotend 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.