1ALL METAL HOT END: The hot end is made of 0.25mm thin walled Ti alloy, with high wear resistance, good heat insulation and no filament clogging 2HIGH TEMPERATURE RESISTANT NOZZLES: Hotend kit uses a copper plated hardened steel nozzles that allow printing at 300 high temperature 3SUITABLE FOR ALL FILAMENTS: Hotend kit is compatible with all thermoplastic filament, including typical composite fiber filament, such as PLA, ABS, PETG, TPU, PP, PC, PA, PEEK, PEI, PLA CF, ABS CF, PETG CF, PA CF, GF, etc. 4KIT INCLUDE: The Hotend Kit is assembled with 1 0.4mm V6 copper plated nozzle, 1 high temperature resistant V6 copper plated heating block, 1 Ti and copper bimetallic V6 pipe, and 1 CNC finished aluminum heat dissipating pipe 5SILICONE SLEEVE: Come with a black silicone insulation sleeve, can effectively protect your hot end kit, practical and useful