Features: Upgraded for H2D 3D printer with Heating Block Kit, featuring a high temperature resistance of up to 250°C for superior performances and reliability. This all metal quick change hotend kit is ensuring excellent conductivity and durability. Ideal for 3D printing enthusiasts and professionals enhances print quality and efficiency, this kit is suitable various filaments. Perfect for use in home workshops or professional studios, ensuring smooth and consistent 3D printing result. With its metal throat prevent clogging, this kit offer upgraded for those optimizes their 3D printing setups. Specifications: Component:Metal Size: Approx.49x17.5x21mm/1.93x0.68x0.82inch Nozzle specification: 0.4mm Package Includes: 1 Set Hardened Steel Nozzle note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.