This is the Olsson heater block as used on the Ultimaker 2+, and available as an upgrade on the Ultimaker 2.
This item is only the replacement heater block, fixing screw, and tools. It does NOT include any nozzles.
For a full kit, including nozzles, please see here.
This is not an official Ultimaker upgrade, but features the exact same parts from the same supplier. You will not invalidate your warranty by installing it, but any damage you cause during the installation process will not be covered by the printer's warranty.
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