Features: Small size and light weight. Aluminum radiators, integrated throat heating block, replaceable threaded hardened steel nozzle. The heating block and nozzle are connected by thread, utilizing the contact between the nozzle and the step at the bottom of the throat to firmly solve the problem of detachment and reduce the possibility of material leakage. The detachable nozzle reduces the cost of use. The heating block is upgraded with chromium zirconiumcopper nickel plating for fast heatconduction and high-temperature printing resistance. The titaniumalloy throat is wrapped with chromium zirconiumcopper for better heat dissipation. The throat structure has been upgraded, and a step limithas been added at the joint with the heating block to solve the problem of material leakage and detachment. The nozzle is hardened steel SKD11, which has undergone quenching hardening treatments and surfaces DLCnano treatments. It can be heated up to 550C or above, making it more wear-resistant and extending its service life. The inner wall of the throat and nozzle are smooth, reducing blockage and improving printing quality. Easy to install and replace, suitable for different machine models. Specifications: Material : Aluminum Alloy Item: Hotend Extrusion Head Kit Size:approx 11.6x62.3mm/0.46x2.45in Nozzle Diameter:approx 13.3mm/0.52in Types:for TZ E3 2.0/ for TZ V6 2.0 For:CR10,CR10S, Ender3, Ender3V2, Ender3Pro,VORON2.4 Note: Due to the problems of lighting effectsand shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to manual measurment. Package includes: 1Set 3D Printer Hot End Extrusion Head Kit