1HEAT RESISTANT: All metal heat break support high temperature resistance up to 300, and the nozzle is made of brass alloy and hardened steel to ensure hardness while supporting high flow printing 2EFFICIENT AND HIGH SPEED: Ceramic heating block hotend kit with 32mm/s high flow, the overall hot melt section is enlarged 30% and the length is up to 285mm, supporting 600mm/s high speed printing 3HIGH THERMAL CONDUCTIVITY: 360 surround ceramic heater improve heating efficiency, bring more uniform heating, and faster heat transfer. With a powerful 60W ceramic heating ring ensure faster heat transfer 4BETTER COMPATIBILITY: Ceramic heating block kit work with most Fused Deposition Modeling printing filaments such as PLA, ABS, PETG, TPU, PA, PC, PLA CF, PA CF, and PET CF, etc. 5APPLICABLE MODEL: Ceramic heating block hotend kit is compatible with for Creality K1, and for K1 MAXIMUM 3D printers, the wall thickness is extremely thin 0.15mm, possess excellent heat insulation performance, and the inner wall roughness of the brass alloy nozzle is less than Ra0.4 make the feeding smoother and printing results superior 1 x BrassNozzle 1 x Throat 1 x Silicone Sleeve 1 xCeramicHeatingRing 1 x Thermistor 3 xBody Attachment