The product is a heat break for a Felix 3D printers Tec 4 and 4.1. It is a part is a Version 2r that is responsible for heating the filament and melting it for extrusion. The heat block is an essential component of the printer and is necessary for the printer to function properly.  Price includes shipping in the USA. International shipment is available (Buyer Pays) using USPS First Class International Mail price ranges between US$ 3.89 to $6.75