It's difficult to see in the image, but the resin in the path that takes in the filament at the tip of the second image is open. Filament that has been cut normally can be used without any problems. I inserted a filament with a long, thin tip, and it bent. I rescued it with the included pin, and after that, I was able to use the filament by cutting it properly. Although it can be used, I will sell it at a low price, so please understand that it is non-refundable and non-returnable. Includes the main unit, power cord, box, and filament.